description: 'R5: `ActivityDefinition.observationRequirement` additional types (canonical(http://hl7.org/fhir/StructureDefinition/ObservationDefinition)) additional types from child elements (value)'
package_name: hl7.fhir.uv.xver-r5.r4
derivation: constraint
name: ExtensionActivityDefinition_ObservationRequirement
type: Extension
elements:
  url:
    base: {max: '1', min: 1, path: Extension.url}
    pattern: {type: Uri, value: 'http://hl7.org/fhir/5.0/StructureDefinition/extension-ActivityDefinition.observationRequirement'}
    index: 0
  value:
    base: {max: '1', min: 0, path: 'Extension.value[x]'}
    short: What observations are required to perform this action
    choices: [valueCanonical]
    index: 2
  valueCanonical:
    short: What observations are required to perform this action
    type: canonical
    base: {max: '1', min: 0, path: 'Extension.value[x]'}
    choiceOf: value
    index: 3
package_version: 0.1.0
class: extension
kind: complex-type
url: http://hl7.org/fhir/5.0/StructureDefinition/extension-ActivityDefinition.observationRequirement
base: http://hl7.org/fhir/StructureDefinition/Extension|4.0.1
version: 0.1.0
required: [url]