description: An extension to support adding a BodyStructure on an Observation.
package_name: fhir.r4.ukcore.stu2
derivation: constraint
name: ExtensionUKCoreObservationBodyStructure
type: Extension
elements:
  url:
    pattern: {type: uri, value: 'http://hl7.org/fhir/5.0/StructureDefinition/extension-Observation.bodyStructure'}
    type: uri
    index: 0
  value:
    choices: [valueReference]
    index: 2
  valueReference:
    type: Reference
    choiceOf: value
    refers: ['http://hl7.org/fhir/StructureDefinition/BodyStructure']
    index: 3
package_version: 2.0.1
class: extension
kind: complex-type
url: http://hl7.org/fhir/5.0/StructureDefinition/extension-Observation.bodyStructure
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 1.0.0
required: [value, valueReference]