description: The reason why an appointment was postoponed. This is often used in reporting/billing/further processing to determine if further actions are required, or specific fees apply. package_name: hl7.at.fhir.tc.wg.scheduling.r5 derivation: constraint name: AppointmentPostponementReasonExt type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'https://fhir.hl7.at/tc/wg/scheduling/r5/StructureDefinition/appointment-postponementReason'} index: 1 value: choices: [valueCodeableConcept] index: 3 valueCodeableConcept: {type: CodeableConcept, choiceOf: value, index: 4} package_version: 1.0.0 extensions: {} class: extension kind: complex-type url: https://fhir.hl7.at/tc/wg/scheduling/r5/StructureDefinition/appointment-postponementReason base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.0.0