description: Indicates the reason the event was not performed. package_name: hl7.fhir.us.qicore derivation: constraint name: QICoreDoNotPerformReason type: Extension elements: url: type: uri pattern: {type: Uri, value: 'http://hl7.org/fhir/us/qicore/StructureDefinition/qicore-doNotPerformReason'} index: 0 value: choices: [valueCodeableConcept] index: 2 valueCodeableConcept: {type: CodeableConcept, choiceOf: value, index: 3} package_version: 5.0.0-ballot class: extension kind: complex-type url: http://hl7.org/fhir/us/qicore/StructureDefinition/qicore-doNotPerformReason base: http://hl7.org/fhir/StructureDefinition/Extension version: 5.0.0-ballot