description: Identifies a Questionnaire that is being asked to be completed package_name: hl7.fhir.uv.sdc.r4b derivation: constraint name: SDCServiceRequestQuestionnaire type: Extension elements: extension: {index: 0} url: type: uri pattern: {type: Uri, value: 'http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-servicerequest-questionnaire'} index: 1 value: choices: [valueCanonical] index: 3 valueCanonical: {type: canonical, choiceOf: value, index: 4} package_version: 3.0.0 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-servicerequest-questionnaire base: http://hl7.org/fhir/StructureDefinition/Extension version: 3.0.0