A definition of a FHIR structure. This resource is used to describe the underlying resources, data types defined in FHIR, and also for describing extensions and constraints on resources and data types.

StructureDefinition
url
Canonical identifier for this structure definition, represented as a URI (globally unique)
identifier
Additional identifier for the structure definition
version
Business version of the structure definition
name
Name for this structure definition (computer friendly)
title
Name for this structure definition (human friendly)
status
draft | active | retired | unknown
experimental
For testing purposes, not real usage
date
Date last changed
publisher
Name of the publisher (organization or individual)
contact
Contact details for the publisher
description
Natural language description of the structure definition
useContext
The context that the content is intended to support
jurisdiction
Intended jurisdiction for structure definition (if applicable)
purpose
Why this structure definition is defined
keyword
Assist with indexing and finding
fhirVersion
FHIR Version this StructureDefinition targets
mapping
External specification that the content is mapped to
identity
Internal id when this mapping is used
uri
Identifies what this mapping refers to
name
Names what this mapping refers to
comment
Versions, Issues, Scope limitations etc.
kind
primitive-type | complex-type | resource | logical
abstract
Whether the structure is abstract
context
If an extension, where it can be used in instances
type
fhirpath | element | extension
expression
Where the extension can be used in instances
contextInvariant
FHIRPath invariants - when the extension can be used
type
Type defined or constrained by this structure
baseDefinition
Definition that this type is constrained/specialized from
derivation
specialization | constraint - How relates to base definition
snapshot
Snapshot view of the structure
element
Definition of elements in the resource (if no StructureDefinition)
differential
Differential view of the structure
element
Definition of elements in the resource (if no StructureDefinition)