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Complex
Primitive
ActivityDefinition
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StructureDefinition
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ValueSet
default
Base StructureDefinition for Extension Type: Optional Extension Element - found in all resources.
Extension
Path
Extension
Id
Extension
Cardinality
0 - *
Definition
Optional Extension Element - found in all resources.
Comment
Constraint
ele-1 [error]
All FHIR elements must have a @value or children unless an empty Parameters resource
ext-1 [error]
Must have either extensions or value[x], not both
Condition
ele-1
Path
Extension.url
Id
Extension.url
Type
Cardinality
1 - 1
Definition
Source of the definition for the extension code - a logical name or a URL.
Comment
The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Path
Extension.url.string.value
Id
string.value
Type
Cardinality
0 - 1
Definition
The actual value
Comment
Path
Extension.url.string.value.string.value
Id
string.value
Type
Cardinality
0 - 1
Definition
The actual value
Comment
Path
Extension.value[x]
Id
Extension.value[x]
Type
Cardinality
0 - 1
Definition
Value of extension - must be one of a constrained set of the data types (see [Extensibility](extensibility.html) for a list).
Comment
Constraint
ele-1 [error]
All FHIR elements must have a @value or children