description: This describes the delivery channel of a scheduled appointment. package_name: fhir.r4.ukcore.stu3.currentbuild derivation: constraint name: ExtensionUKCoreDeliveryChannel type: Extension elements: url: pattern: {type: uri, value: 'https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-DeliveryChannel'} type: uri index: 0 value: short: A code that identifies the delivery channel of an appointment choices: [valueCodeableConcept] index: 2 valueCodeableConcept: {type: CodeableConcept, short: A code that identifies the delivery channel of an appointment, choiceOf: value, index: 3} package_version: 0.0.15-pre-release class: extension kind: complex-type url: https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-DeliveryChannel base: http://hl7.org/fhir/StructureDefinition/Extension version: 2.1.0 required: [value, valueCodeableConcept]