description: This cross-version extension represents CarePlan.activity.detail.statusReason from http://hl7.org/fhir/StructureDefinition/CarePlan|3.0.2 for use in FHIR R4. package_name: hl7.fhir.uv.xver-r3.r4 derivation: constraint name: ext_R3_CarePlan_ac_de_statusReason type: Extension elements: value: base: {path: 'Extension.value[x]'} short: Reason for current status choices: [valueString] index: 1 valueString: base: {path: 'Extension.value[x]'} type: string short: Reason for current status choiceOf: value index: 2 url: pattern: {type: uri, value: 'http://hl7.org/fhir/3.0/StructureDefinition/extension-CarePlan.activity.detail.statusReason'} type: uri index: 3 package_version: 0.0.1-snapshot-1 class: extension kind: complex-type url: http://hl7.org/fhir/3.0/StructureDefinition/extension-CarePlan.activity.detail.statusReason base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.0.1-snapshot-1 required: [url]