description: Describes the intended purpose of the rendered text. For example - instructions, guidance on access control, maintenance information, etc. package_name: hl7.fhir.r3.examples derivation: constraint name: displayCategory type: Extension elements: extension: {index: 0} url: type: uri pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/questionnaire-displayCategory'} index: 1 valueCodeableConcept: {type: CodeableConcept, index: 2} package_version: 3.0.2 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/questionnaire-displayCategory base: http://hl7.org/fhir/StructureDefinition/Extension version: null