MedicationAdministration R5 (FHIR) at fhirtruck

Path

MedicationAdministration

Id

MedicationAdministration

Cardinality

0 - *

Definition

Describes the event of a patient consuming or otherwise being administered a medication. This may be as simple as swallowing a tablet or it may be a long running infusion. Related resources tie this event to the authorizing prescription, and the specific encounter between patient and health care practitioner.

Comment

Constraint

dom-2 [error]

If the resource is contained in another resource, it SHALL NOT contain nested Resources

dom-3 [error]

If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource

dom-4 [error]

If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated

dom-5 [error]

If a resource is contained in another resource, it SHALL NOT have a security label

dom-6 [warning]

A resource should have narrative for robust management

Path

MedicationAdministration.identifier

Id

MedicationAdministration.identifier

Type

Identifier

Cardinality

0 - *

Definition

Identifiers associated with this Medication Administration that are defined by business processes and/or used to refer to it when a direct URL reference to the resource itself is not appropriate. They are business identifiers assigned to this resource by the performer or other systems and remain constant as the resource is updated and propagates from server to server.

Comment

This is a business identifier, not a resource identifier.

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

use

Summary: The element appears in the summary view

code

usual | official | temp | secondary | old (If known)

type

CodeableConcept

Description of identifier

coding

List: This element is a list and more than one value can be provided

Coding

Code defined by a terminology system

system

uri

Identity of the terminology system

version

string

Version of the system - if relevant

code

Symbol in syntax defined by the system

display

string

Representation defined by the system

userSelected

boolean

If this coding was chosen directly by the user

system

uri

The namespace for the identifier value

value

string

The value that is unique

period

Period

Time period when id is/was valid for use

start

dateTime

Starting time with inclusive boundary

end

dateTime

End time with inclusive boundary, if not ongoing

assigner

Reference

Organization that issued id (may be just text)

reference

string

Literal reference, Relative, internal or absolute URL

type

uri

Type the reference refers to (e.g. "Patient") - must be a resource in resources

identifier

Identifier

Logical reference, when literal reference is not known

Path

MedicationAdministration.identifier.Identifier.assigner.Reference.identifier

Id

Reference.identifier

Type

Identifier

Cardinality

0 - 1

Definition

An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

Comment

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). This element only allows for a single identifier. In the case where additional identifers are required, use the [http://hl7.org/fhir/StructureDefinition/additionalIdentifier](http://hl7.org/fhir/extensions/StructureDefinition-additionalIdentifier.html) extension.

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

Condition

ref-2

use

code

usual | official | temp | secondary | old (If known)

type

CodeableConcept

Description of identifier

system

uri

The namespace for the identifier value

value

string

The value that is unique

period

Period

Time period when id is/was valid for use

assigner

Reference

Organization that issued id (may be just text)

display

string

Text alternative for the resource

Path

MedicationAdministration.basedOn

Id

MedicationAdministration.basedOn

Type

Reference

Cardinality

0 - *

Definition

A plan that is fulfilled in whole or in part by this MedicationAdministration.

Comment

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

reference

string

Literal reference, Relative, internal or absolute URL

type

uri

Type the reference refers to (e.g. "Patient") - must be a resource in resources

identifier

Identifier

Logical reference, when literal reference is not known

Path

MedicationAdministration.basedOn.Reference.identifier

Id

Reference.identifier

Type

Identifier

Cardinality

0 - 1

Definition

An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

Comment

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). This element only allows for a single identifier. In the case where additional identifers are required, use the [http://hl7.org/fhir/StructureDefinition/additionalIdentifier](http://hl7.org/fhir/extensions/StructureDefinition-additionalIdentifier.html) extension.

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

Condition

ref-2

use

code

usual | official | temp | secondary | old (If known)

type

CodeableConcept

Description of identifier

system

uri

The namespace for the identifier value

value

string

The value that is unique

period

Period

Time period when id is/was valid for use

start

dateTime

Starting time with inclusive boundary

end

dateTime

End time with inclusive boundary, if not ongoing

assigner

Reference

Organization that issued id (may be just text)

reference

string

Literal reference, Relative, internal or absolute URL

type

uri

Type the reference refers to (e.g. "Patient") - must be a resource in resources

identifier

Identifier

Logical reference, when literal reference is not known

Path

MedicationAdministration.basedOn.Reference.identifier.Identifier.assigner.Reference.identifier

Id

Reference.identifier

Type

Identifier

Cardinality

0 - 1

Definition

An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

Comment

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). This element only allows for a single identifier. In the case where additional identifers are required, use the [http://hl7.org/fhir/StructureDefinition/additionalIdentifier](http://hl7.org/fhir/extensions/StructureDefinition-additionalIdentifier.html) extension.

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

Condition

ref-2

display

string

Text alternative for the resource

display

string

Text alternative for the resource

Path

MedicationAdministration.partOf

Id

MedicationAdministration.partOf

Type

Reference

Cardinality

0 - *

Definition

A larger event of which this particular event is a component or step.

Comment

MedicationDispense will be used to indicate waste.

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

reference

string

Literal reference, Relative, internal or absolute URL

type

uri

Type the reference refers to (e.g. "Patient") - must be a resource in resources

identifier

Identifier

Logical reference, when literal reference is not known

Path

MedicationAdministration.partOf.Reference.identifier

Id

Reference.identifier

Type

Identifier

Cardinality

0 - 1

Definition

An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

Comment

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). This element only allows for a single identifier. In the case where additional identifers are required, use the [http://hl7.org/fhir/StructureDefinition/additionalIdentifier](http://hl7.org/fhir/extensions/StructureDefinition-additionalIdentifier.html) extension.

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

Condition

ref-2

use

code

usual | official | temp | secondary | old (If known)

type

CodeableConcept

Description of identifier

system

uri

The namespace for the identifier value

value

string

The value that is unique

period

Period

Time period when id is/was valid for use

start

dateTime

Starting time with inclusive boundary

end

dateTime

End time with inclusive boundary, if not ongoing

assigner

Reference

Organization that issued id (may be just text)

reference

string

Literal reference, Relative, internal or absolute URL

type

uri

Type the reference refers to (e.g. "Patient") - must be a resource in resources

identifier

Identifier

Logical reference, when literal reference is not known

Path

MedicationAdministration.partOf.Reference.identifier.Identifier.assigner.Reference.identifier

Id

Reference.identifier

Type

Identifier

Cardinality

0 - 1

Definition

An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

Comment

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). This element only allows for a single identifier. In the case where additional identifers are required, use the [http://hl7.org/fhir/StructureDefinition/additionalIdentifier](http://hl7.org/fhir/extensions/StructureDefinition-additionalIdentifier.html) extension.

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

Condition

ref-2

display

string

Text alternative for the resource

display

string

Text alternative for the resource

Path

MedicationAdministration.status

Id

MedicationAdministration.status

Type

code

Cardinality

1 - 1

Definition

Will generally be set to show that the administration has been completed. For some long running administrations such as infusions, it is possible for an administration to be started but not completed or it may be paused while some other process is under way.

Comment

This element is labeled as a modifier because the status contains codes that mark the resource as not currently valid.

Binding

Strength

required

Description

A set of codes indicating the current status of a MedicationAdministration.

ValueSet

http://hl7.org/fhir/ValueSet/medication-admin-status|5.0.0

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

Path

MedicationAdministration.statusReason

Id

MedicationAdministration.statusReason

Type

CodeableConcept

Cardinality

0 - *

Definition

A code indicating why the administration was not performed.

Comment

Binding

Strength

example

Description

A set of codes indicating the reason why the MedicationAdministration is negated.

ValueSet

http://hl7.org/fhir/ValueSet/reason-medication-not-given-codes

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

coding

Coding

Code defined by a terminology system

system

uri

Identity of the terminology system

version

string

Version of the system - if relevant

code

Symbol in syntax defined by the system

display

string

Representation defined by the system

userSelected

boolean

If this coding was chosen directly by the user

Path

MedicationAdministration.category

Id

MedicationAdministration.category

Type

CodeableConcept

Cardinality

0 - *

Definition

The type of medication administration (for example, drug classification like ATC, where meds would be administered, legal category of the medication).

Comment

Binding

Strength

example

Description

A coded concept describing where the medication administered is expected to occur.

ValueSet

http://hl7.org/fhir/ValueSet/medication-admin-location

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

coding

Coding

Code defined by a terminology system

system

uri

Identity of the terminology system

version

string

Version of the system - if relevant

code

Symbol in syntax defined by the system

display

string

Representation defined by the system

userSelected

boolean

If this coding was chosen directly by the user

Path

MedicationAdministration.medication

Id

MedicationAdministration.medication

Type

CodeableReference

Cardinality

1 - 1

Definition

Identifies the medication that was administered. This is either a link to a resource representing the details of the medication or a simple attribute carrying a code that identifies the medication from a known list of medications.

Comment

If only a code is specified, then it needs to be a code for a specific product. If more information is required, then the use of the medication resource is recommended. For example, if you require form or lot number, then you must reference the Medication resource.

Binding

Strength

example

Description

Codes identifying substance or product that can be administered.

ValueSet

http://hl7.org/fhir/ValueSet/medication-codes

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

concept

CodeableConcept

Reference to a concept (by class)

coding

Coding

Code defined by a terminology system

system

uri

Identity of the terminology system

version

string

Version of the system - if relevant

code

Symbol in syntax defined by the system

display

string

Representation defined by the system

userSelected

boolean

If this coding was chosen directly by the user

reference

Reference

Reference to a resource (by instance)

reference

string

Literal reference, Relative, internal or absolute URL

type

uri

Type the reference refers to (e.g. "Patient") - must be a resource in resources

identifier

Identifier

Logical reference, when literal reference is not known

Path

MedicationAdministration.medication.CodeableReference.reference.Reference.identifier

Id

Reference.identifier

Type

Identifier

Cardinality

0 - 1

Definition

An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

Comment

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). This element only allows for a single identifier. In the case where additional identifers are required, use the [http://hl7.org/fhir/StructureDefinition/additionalIdentifier](http://hl7.org/fhir/extensions/StructureDefinition-additionalIdentifier.html) extension.

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

Condition

ref-2

use

code

usual | official | temp | secondary | old (If known)

type

CodeableConcept

Description of identifier

system

uri

The namespace for the identifier value

value

string

The value that is unique

period

Period

Time period when id is/was valid for use

assigner

Reference

Organization that issued id (may be just text)

display

string

Text alternative for the resource

Path

MedicationAdministration.subject

Id

MedicationAdministration.subject

Type

Reference

Cardinality

1 - 1

Definition

The person or animal or group receiving the medication.

Comment

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

reference

string

Literal reference, Relative, internal or absolute URL

type

uri

Type the reference refers to (e.g. "Patient") - must be a resource in resources

identifier

Identifier

Logical reference, when literal reference is not known

Path

MedicationAdministration.subject.Reference.identifier

Id

Reference.identifier

Type

Identifier

Cardinality

0 - 1

Definition

An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

Comment

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). This element only allows for a single identifier. In the case where additional identifers are required, use the [http://hl7.org/fhir/StructureDefinition/additionalIdentifier](http://hl7.org/fhir/extensions/StructureDefinition-additionalIdentifier.html) extension.

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

Condition

ref-2

use

code

usual | official | temp | secondary | old (If known)

type

CodeableConcept

Description of identifier

system

uri

The namespace for the identifier value

value

string

The value that is unique

period

Period

Time period when id is/was valid for use

start

dateTime

Starting time with inclusive boundary

end

dateTime

End time with inclusive boundary, if not ongoing

assigner

Reference

Organization that issued id (may be just text)

reference

string

Literal reference, Relative, internal or absolute URL

type

uri

Type the reference refers to (e.g. "Patient") - must be a resource in resources

identifier

Identifier

Logical reference, when literal reference is not known

Path

MedicationAdministration.subject.Reference.identifier.Identifier.assigner.Reference.identifier

Id

Reference.identifier

Type

Identifier

Cardinality

0 - 1

Definition

An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

Comment

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). This element only allows for a single identifier. In the case where additional identifers are required, use the [http://hl7.org/fhir/StructureDefinition/additionalIdentifier](http://hl7.org/fhir/extensions/StructureDefinition-additionalIdentifier.html) extension.

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

Condition

ref-2

display

string

Text alternative for the resource

display

string

Text alternative for the resource

Path

MedicationAdministration.encounter

Id

MedicationAdministration.encounter

Type

Reference

Cardinality

0 - 1

Definition

The visit, admission, or other contact between patient and health care provider during which the medication administration was performed.

Comment

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

reference

string

Literal reference, Relative, internal or absolute URL

type

uri

Type the reference refers to (e.g. "Patient") - must be a resource in resources

identifier

Identifier

Logical reference, when literal reference is not known

Path

MedicationAdministration.encounter.Reference.identifier

Id

Reference.identifier

Type

Identifier

Cardinality

0 - 1

Definition

An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

Comment

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). This element only allows for a single identifier. In the case where additional identifers are required, use the [http://hl7.org/fhir/StructureDefinition/additionalIdentifier](http://hl7.org/fhir/extensions/StructureDefinition-additionalIdentifier.html) extension.

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

Condition

ref-2

use

code

usual | official | temp | secondary | old (If known)

type

CodeableConcept

Description of identifier

system

uri

The namespace for the identifier value

value

string

The value that is unique

period

Period

Time period when id is/was valid for use

start

dateTime

Starting time with inclusive boundary

end

dateTime

End time with inclusive boundary, if not ongoing

assigner

Reference

Organization that issued id (may be just text)

reference

string

Literal reference, Relative, internal or absolute URL

type

uri

Type the reference refers to (e.g. "Patient") - must be a resource in resources

identifier

Identifier

Logical reference, when literal reference is not known

Path

MedicationAdministration.encounter.Reference.identifier.Identifier.assigner.Reference.identifier

Id

Reference.identifier

Type

Identifier

Cardinality

0 - 1

Definition

An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

Comment

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). This element only allows for a single identifier. In the case where additional identifers are required, use the [http://hl7.org/fhir/StructureDefinition/additionalIdentifier](http://hl7.org/fhir/extensions/StructureDefinition-additionalIdentifier.html) extension.

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

Condition

ref-2

display

string

Text alternative for the resource

display

string

Text alternative for the resource

Path

MedicationAdministration.supportingInformation

Id

MedicationAdministration.supportingInformation

Type

Reference

Cardinality

0 - *

Definition

Additional information (for example, patient height and weight) that supports the administration of the medication. This attribute can be used to provide documentation of specific characteristics of the patient present at the time of administration. For example, if the dose says "give "x" if the heartrate exceeds "y"", then the heart rate can be included using this attribute.

Comment

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

reference

string

Literal reference, Relative, internal or absolute URL

type

uri

Type the reference refers to (e.g. "Patient") - must be a resource in resources

identifier

Identifier

Logical reference, when literal reference is not known

Path

MedicationAdministration.supportingInformation.Reference.identifier

Id

Reference.identifier

Type

Identifier

Cardinality

0 - 1

Definition

An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

Comment

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). This element only allows for a single identifier. In the case where additional identifers are required, use the [http://hl7.org/fhir/StructureDefinition/additionalIdentifier](http://hl7.org/fhir/extensions/StructureDefinition-additionalIdentifier.html) extension.

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

Condition

ref-2

use

code

usual | official | temp | secondary | old (If known)

type

CodeableConcept

Description of identifier

system

uri

The namespace for the identifier value

value

string

The value that is unique

period

Period

Time period when id is/was valid for use

start

dateTime

Starting time with inclusive boundary

end

dateTime

End time with inclusive boundary, if not ongoing

assigner

Reference

Organization that issued id (may be just text)

reference

string

Literal reference, Relative, internal or absolute URL

type

uri

Type the reference refers to (e.g. "Patient") - must be a resource in resources

identifier

Identifier

Logical reference, when literal reference is not known

Path

MedicationAdministration.supportingInformation.Reference.identifier.Identifier.assigner.Reference.identifier

Id

Reference.identifier

Type

Identifier

Cardinality

0 - 1

Definition

An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

Comment

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). This element only allows for a single identifier. In the case where additional identifers are required, use the [http://hl7.org/fhir/StructureDefinition/additionalIdentifier](http://hl7.org/fhir/extensions/StructureDefinition-additionalIdentifier.html) extension.

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

Condition

ref-2

display

string

Text alternative for the resource

display

string

Text alternative for the resource

Path

MedicationAdministration.occurence[x]

Id

MedicationAdministration.occurence[x]

Type

dateTime

Cardinality

1 - 1

Definition

A specific date/time or interval of time during which the administration took place (or did not take place). For many administrations, such as swallowing a tablet the use of dateTime is more appropriate.

Comment

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

Path

MedicationAdministration.recorded

Id

MedicationAdministration.recorded

Type

dateTime

Cardinality

0 - 1

Definition

The date the occurrence of the MedicationAdministration was first captured in the record - potentially significantly after the occurrence of the event.

Comment

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

Path

MedicationAdministration.isSubPotent

Id

MedicationAdministration.isSubPotent

Type

boolean

Cardinality

0 - 1

Definition

An indication that the full dose was not administered.

Comment

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

Path

MedicationAdministration.subPotentReason

Id

MedicationAdministration.subPotentReason

Type

CodeableConcept

Cardinality

0 - *

Definition

The reason or reasons why the full dose was not administered.

Comment

Binding

Strength

example

Description

ValueSet

http://hl7.org/fhir/ValueSet/administration-subpotent-reason

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

coding

Coding

Code defined by a terminology system

system

uri

Identity of the terminology system

version

string

Version of the system - if relevant

code

Symbol in syntax defined by the system

display

string

Representation defined by the system

userSelected

boolean

If this coding was chosen directly by the user

Path

MedicationAdministration.performer

Id

MedicationAdministration.performer

Type

BackboneElement

Cardinality

0 - *

Definition

The performer of the medication treatment. For devices this is the device that performed the administration of the medication. An IV Pump would be an example of a device that is performing the administration. Both the IV Pump and the practitioner that set the rate or bolus on the pump can be listed as performers.

Comment

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

Path

MedicationAdministration.performer.function

Id

MedicationAdministration.performer.function

Type

CodeableConcept

Cardinality

0 - 1

Definition

Distinguishes the type of involvement of the performer in the medication administration.

Comment

Binding

Strength

example

Description

A code describing the role an individual played in administering the medication.

ValueSet

http://hl7.org/fhir/ValueSet/med-admin-perform-function

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

coding

Coding

Code defined by a terminology system

system

uri

Identity of the terminology system

version

string

Version of the system - if relevant

code

Symbol in syntax defined by the system

display

string

Representation defined by the system

userSelected

boolean

If this coding was chosen directly by the user

Path

MedicationAdministration.performer.actor

Id

MedicationAdministration.performer.actor

Type

CodeableReference

Cardinality

1 - 1

Definition

Indicates who or what performed the medication administration.

Comment

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

concept

CodeableConcept

Reference to a concept (by class)

reference

Reference

Reference to a resource (by instance)

reference

string

Literal reference, Relative, internal or absolute URL

type

uri

Type the reference refers to (e.g. "Patient") - must be a resource in resources

identifier

Identifier

Logical reference, when literal reference is not known

Path

MedicationAdministration.performer.actor.CodeableReference.reference.Reference.identifier

Id

Reference.identifier

Type

Identifier

Cardinality

0 - 1

Definition

An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

Comment

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). This element only allows for a single identifier. In the case where additional identifers are required, use the [http://hl7.org/fhir/StructureDefinition/additionalIdentifier](http://hl7.org/fhir/extensions/StructureDefinition-additionalIdentifier.html) extension.

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

Condition

ref-2

display

string

Text alternative for the resource

Path

MedicationAdministration.reason

Id

MedicationAdministration.reason

Type

CodeableReference

Cardinality

0 - *

Definition

A code, Condition or observation that supports why the medication was administered.

Comment

Binding

Strength

example

Description

A set of codes indicating the reason why the MedicationAdministration was made.

ValueSet

http://hl7.org/fhir/ValueSet/reason-medication-given-codes

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

concept

CodeableConcept

Reference to a concept (by class)

coding

Coding

Code defined by a terminology system

system

uri

Identity of the terminology system

version

string

Version of the system - if relevant

code

Symbol in syntax defined by the system

display

string

Representation defined by the system

userSelected

boolean

If this coding was chosen directly by the user

reference

Reference

Reference to a resource (by instance)

reference

string

Literal reference, Relative, internal or absolute URL

type

uri

Type the reference refers to (e.g. "Patient") - must be a resource in resources

identifier

Identifier

Logical reference, when literal reference is not known

Path

MedicationAdministration.reason.CodeableReference.reference.Reference.identifier

Id

Reference.identifier

Type

Identifier

Cardinality

0 - 1

Definition

An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

Comment

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). This element only allows for a single identifier. In the case where additional identifers are required, use the [http://hl7.org/fhir/StructureDefinition/additionalIdentifier](http://hl7.org/fhir/extensions/StructureDefinition-additionalIdentifier.html) extension.

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

Condition

ref-2

use

code

usual | official | temp | secondary | old (If known)

type

CodeableConcept

Description of identifier

system

uri

The namespace for the identifier value

value

string

The value that is unique

period

Period

Time period when id is/was valid for use

assigner

Reference

Organization that issued id (may be just text)

display

string

Text alternative for the resource

Path

MedicationAdministration.request

Id

MedicationAdministration.request

Type

Reference

Cardinality

0 - 1

Definition

The original request, instruction or authority to perform the administration.

Comment

This is a reference to the MedicationRequest where the intent is either order or instance-order. It should not reference MedicationRequests where the intent is any other value.

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

reference

string

Literal reference, Relative, internal or absolute URL

type

uri

Type the reference refers to (e.g. "Patient") - must be a resource in resources

identifier

Identifier

Logical reference, when literal reference is not known

Path

MedicationAdministration.request.Reference.identifier

Id

Reference.identifier

Type

Identifier

Cardinality

0 - 1

Definition

An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

Comment

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). This element only allows for a single identifier. In the case where additional identifers are required, use the [http://hl7.org/fhir/StructureDefinition/additionalIdentifier](http://hl7.org/fhir/extensions/StructureDefinition-additionalIdentifier.html) extension.

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

Condition

ref-2

use

code

usual | official | temp | secondary | old (If known)

type

CodeableConcept

Description of identifier

system

uri

The namespace for the identifier value

value

string

The value that is unique

period

Period

Time period when id is/was valid for use

start

dateTime

Starting time with inclusive boundary

end

dateTime

End time with inclusive boundary, if not ongoing

assigner

Reference

Organization that issued id (may be just text)

reference

string

Literal reference, Relative, internal or absolute URL

type

uri

Type the reference refers to (e.g. "Patient") - must be a resource in resources

identifier

Identifier

Logical reference, when literal reference is not known

Path

MedicationAdministration.request.Reference.identifier.Identifier.assigner.Reference.identifier

Id

Reference.identifier

Type

Identifier

Cardinality

0 - 1

Definition

An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

Comment

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). This element only allows for a single identifier. In the case where additional identifers are required, use the [http://hl7.org/fhir/StructureDefinition/additionalIdentifier](http://hl7.org/fhir/extensions/StructureDefinition-additionalIdentifier.html) extension.

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

Condition

ref-2

display

string

Text alternative for the resource

display

string

Text alternative for the resource

Path

MedicationAdministration.device

Id

MedicationAdministration.device

Type

CodeableReference

Cardinality

0 - *

Definition

The device that is to be used for the administration of the medication (for example, PCA Pump).

Comment

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

concept

CodeableConcept

Reference to a concept (by class)

coding

Coding

Code defined by a terminology system

system

uri

Identity of the terminology system

version

string

Version of the system - if relevant

code

Symbol in syntax defined by the system

display

string

Representation defined by the system

userSelected

boolean

If this coding was chosen directly by the user

reference

Reference

Reference to a resource (by instance)

reference

string

Literal reference, Relative, internal or absolute URL

type

uri

Type the reference refers to (e.g. "Patient") - must be a resource in resources

identifier

Identifier

Logical reference, when literal reference is not known

Path

MedicationAdministration.device.CodeableReference.reference.Reference.identifier

Id

Reference.identifier

Type

Identifier

Cardinality

0 - 1

Definition

An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

Comment

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). This element only allows for a single identifier. In the case where additional identifers are required, use the [http://hl7.org/fhir/StructureDefinition/additionalIdentifier](http://hl7.org/fhir/extensions/StructureDefinition-additionalIdentifier.html) extension.

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

Condition

ref-2

use

code

usual | official | temp | secondary | old (If known)

type

CodeableConcept

Description of identifier

system

uri

The namespace for the identifier value

value

string

The value that is unique

period

Period

Time period when id is/was valid for use

assigner

Reference

Organization that issued id (may be just text)

display

string

Text alternative for the resource

Path

MedicationAdministration.note

Id

MedicationAdministration.note

Type

Annotation

Cardinality

0 - *

Definition

Extra information about the medication administration that is not conveyed by the other attributes.

Comment

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

author[x]

Reference

Individual responsible for the annotation

reference

string

Literal reference, Relative, internal or absolute URL

type

uri

Type the reference refers to (e.g. "Patient") - must be a resource in resources

identifier

Identifier

Logical reference, when literal reference is not known

Path

MedicationAdministration.note.Annotation.author[x].Reference.identifier

Id

Reference.identifier

Type

Identifier

Cardinality

0 - 1

Definition

An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

Comment

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). This element only allows for a single identifier. In the case where additional identifers are required, use the [http://hl7.org/fhir/StructureDefinition/additionalIdentifier](http://hl7.org/fhir/extensions/StructureDefinition-additionalIdentifier.html) extension.

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

Condition

ref-2

use

code

usual | official | temp | secondary | old (If known)

type

CodeableConcept

Description of identifier

system

uri

The namespace for the identifier value

value

string

The value that is unique

period

Period

Time period when id is/was valid for use

assigner

Reference

Organization that issued id (may be just text)

display

string

Text alternative for the resource

time

dateTime

When the annotation was made

Path

MedicationAdministration.dosage

Id

MedicationAdministration.dosage

Type

BackboneElement

Cardinality

0 - 1

Definition

Describes the medication dosage information details e.g. dose, rate, site, route, etc.

Comment

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

mad-1 [error]

If dosage attribute is present then SHALL have at least one of dosage.text or dosage.dose or dosage.rate[x]

Path

MedicationAdministration.dosage.site

Id

MedicationAdministration.dosage.site

Type

CodeableConcept

Cardinality

0 - 1

Definition

A coded specification of the anatomic site where the medication first entered the body. For example, "left arm".

Comment

If the use case requires attributes from the BodySite resource (e.g. to identify and track separately) then use the standard extension [http://hl7.org/fhir/StructureDefinition/bodySite](http://hl7.org/fhir/extensions/StructureDefinition-bodySite.html). May be a summary code, or a reference to a very precise definition of the location, or both.

Binding

Strength

example

Description

A coded concept describing the site location the medicine enters into or onto the body.

ValueSet

http://hl7.org/fhir/ValueSet/approach-site-codes

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

coding

Coding

Code defined by a terminology system

system

uri

Identity of the terminology system

version

string

Version of the system - if relevant

code

Symbol in syntax defined by the system

display

string

Representation defined by the system

userSelected

boolean

If this coding was chosen directly by the user

Path

MedicationAdministration.dosage.route

Id

MedicationAdministration.dosage.route

Type

CodeableConcept

Cardinality

0 - 1

Definition

A code specifying the route or physiological path of administration of a therapeutic agent into or onto the patient. For example, topical, intravenous, etc.

Comment

Binding

Strength

example

Description

A coded concept describing the route or physiological path of administration of a therapeutic agent into or onto the body of a subject.

ValueSet

http://hl7.org/fhir/ValueSet/route-codes

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

coding

Coding

Code defined by a terminology system

system

uri

Identity of the terminology system

version

string

Version of the system - if relevant

code

Symbol in syntax defined by the system

display

string

Representation defined by the system

userSelected

boolean

If this coding was chosen directly by the user

Path

MedicationAdministration.dosage.method

Id

MedicationAdministration.dosage.method

Type

CodeableConcept

Cardinality

0 - 1

Definition

A coded value indicating the method by which the medication is intended to be or was introduced into or on the body. This attribute will most often NOT be populated. It is most commonly used for injections. For example, Slow Push, Deep IV.

Comment

One of the reasons this attribute is not used often, is that the method is often pre-coordinated with the route and/or form of administration. This means the codes used in route or form may pre-coordinate the method in the route code or the form code. The implementation decision about what coding system to use for route or form code will determine how frequently the method code will be populated e.g. if route or form code pre-coordinate method code, then this attribute will not be populated often; if there is no pre-coordination then method code may be used frequently.

Binding

Strength

example

Description

A coded concept describing the technique by which the medicine is administered.

ValueSet

http://hl7.org/fhir/ValueSet/administration-method-codes

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

coding

Coding

Code defined by a terminology system

system

uri

Identity of the terminology system

version

string

Version of the system - if relevant

code

Symbol in syntax defined by the system

display

string

Representation defined by the system

userSelected

boolean

If this coding was chosen directly by the user

Path

MedicationAdministration.dosage.dose

Id

MedicationAdministration.dosage.dose

Type

Quantity

Cardinality

0 - 1

Definition

The amount of the medication given at one administration event. Use this value when the administration is essentially an instantaneous event such as a swallowing a tablet or giving an injection.

Comment

If the administration is not instantaneous (rate is present), this can be specified to convey the total amount administered over period of time of a single administration.

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

Condition

mad-1

value

decimal

Numerical value (with implicit precision)

comparator

code

< | <= | >= | > | ad - how to understand the value

unit

string

Unit representation

system

uri

System that defines coded unit form

code

Coded form of the unit

Path

MedicationAdministration.dosage.rate[x]

Id

MedicationAdministration.dosage.rate[x]

Type

Ratio

Cardinality

0 - 1

Definition

Identifies the speed with which the medication was or will be introduced into the patient. Typically, the rate for an infusion e.g. 100 ml per 1 hour or 100 ml/hr. May also be expressed as a rate per unit of time, e.g. 500 ml per 2 hours. Other examples: 200 mcg/min or 200 mcg/1 minute; 1 liter/8 hours.

Comment

If the rate changes over time, and you want to capture this in MedicationAdministration, then each change should be captured as a distinct MedicationAdministration, with a specific MedicationAdministration.dosage.rate, and the date time when the rate change occurred. Typically, the MedicationAdministration.dosage.rate element is not used to convey an average rate.

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

Condition

mad-1

numerator

Quantity

Numerator value

value

decimal

Numerical value (with implicit precision)

comparator

code

< | <= | >= | > | ad - how to understand the value

unit

string

Unit representation

system

uri

System that defines coded unit form

code

Coded form of the unit

denominator

Quantity

Denominator value

value

decimal

Numerical value (with implicit precision)

comparator

code

< | <= | >= | > | ad - how to understand the value

unit

string

Unit representation

system

uri

System that defines coded unit form

code

Coded form of the unit

Path

MedicationAdministration.eventHistory

Id

MedicationAdministration.eventHistory

Type

Reference

Cardinality

0 - *

Definition

A summary of the events of interest that have occurred, such as when the administration was verified.

Comment

This might not include provenances for all versions of the request – only those deemed “relevant” or important. This SHALL NOT include the Provenance associated with this current version of the resource. (If that provenance is deemed to be a “relevant” change, it will need to be added as part of a later update. Until then, it can be queried directly as the Provenance that points to this version using _revinclude All Provenances should have some historical version of this Request as their subject.

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

reference

string

Literal reference, Relative, internal or absolute URL

type

uri

Type the reference refers to (e.g. "Patient") - must be a resource in resources

identifier

Identifier

Logical reference, when literal reference is not known

Path

MedicationAdministration.eventHistory.Reference.identifier

Id

Reference.identifier

Type

Identifier

Cardinality

0 - 1

Definition

An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

Comment

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). This element only allows for a single identifier. In the case where additional identifers are required, use the [http://hl7.org/fhir/StructureDefinition/additionalIdentifier](http://hl7.org/fhir/extensions/StructureDefinition-additionalIdentifier.html) extension.

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

Condition

ref-2

use

code

usual | official | temp | secondary | old (If known)

type

CodeableConcept

Description of identifier

system

uri

The namespace for the identifier value

value

string

The value that is unique

period

Period

Time period when id is/was valid for use

start

dateTime

Starting time with inclusive boundary

end

dateTime

End time with inclusive boundary, if not ongoing

assigner

Reference

Organization that issued id (may be just text)

reference

string

Literal reference, Relative, internal or absolute URL

type

uri

Type the reference refers to (e.g. "Patient") - must be a resource in resources

identifier

Identifier

Logical reference, when literal reference is not known

Path

MedicationAdministration.eventHistory.Reference.identifier.Identifier.assigner.Reference.identifier

Id

Reference.identifier

Type

Identifier

Cardinality

0 - 1

Definition

An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

Comment

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). This element only allows for a single identifier. In the case where additional identifers are required, use the [http://hl7.org/fhir/StructureDefinition/additionalIdentifier](http://hl7.org/fhir/extensions/StructureDefinition-additionalIdentifier.html) extension.

Constraint

ele-1 [error]

All FHIR elements must have a @value or children

Condition

ref-2

display

string

Text alternative for the resource

display

string

Text alternative for the resource