description: 'R5: `ActorDefinition.useContext` (new:UsageContext)' package_name: hl7.fhir.uv.xver-r5.r4b derivation: constraint name: ExtensionActorDefinition_UseContext type: Extension elements: url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: 'http://hl7.org/fhir/5.0/StructureDefinition/extension-ActorDefinition.useContext'} index: 0 value: short: The context that the content is intended to support choices: [valueUsageContext] base: {max: '1', min: 0, path: 'Extension.value[x]'} index: 2 valueUsageContext: short: The context that the content is intended to support type: UsageContext 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-ActorDefinition.useContext base: http://hl7.org/fhir/StructureDefinition/Extension|4.3.0 version: 0.1.0 required: [url]