description: This cross-version extension represents Appointment.class from http://hl7.org/fhir/StructureDefinition/Appointment|5.0.0 for use in FHIR R4. package_name: ca.ab.fhir.aberec1 derivation: constraint name: Ext_R5_Appointment_class type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/5.0/StructureDefinition/extension-Appointment.class'} index: 1 value: short: Classification when becoming an encounter choices: [valueCodeableConcept] index: 3 valueCodeableConcept: {type: CodeableConcept, short: Classification when becoming an encounter, choiceOf: value, index: 4} package_version: 1.1.0-pre4 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/5.0/StructureDefinition/extension-Appointment.class base: http://hl7.org/fhir/StructureDefinition/Extension|4.0.1 version: 0.0.1-snapshot-2