description: Materials that should be used during a CarePlan activity. package_name: nictiz.fhir.nl.r4.zib2020 derivation: constraint name: ExtCarePlanMaterialUsed type: Extension elements: url: pattern: {type: Uri, value: 'http://nictiz.nl/fhir/StructureDefinition/ext-CarePlan-MaterialUsed'} index: 0 value: choices: [valueReference] index: 2 valueReference: type: Reference choiceOf: value refers: ['http://hl7.org/fhir/StructureDefinition/DeviceUseStatement'] index: 3 package_version: 0.11.0-beta.1 class: extension kind: complex-type url: http://nictiz.nl/fhir/StructureDefinition/ext-CarePlan-MaterialUsed base: http://hl7.org/fhir/StructureDefinition/Extension version: null