description: This extension is constrained to represent the method used to send or receive a Referral Request. package_name: NHSD.Assets.STU3 derivation: constraint name: Extension-CareConnect-ReferralRequestMethod-1 type: Extension elements: url: pattern: {type: Uri, value: 'https://fhir.hl7.org.uk/STU3/StructureDefinition/Extension-CareConnect-ReferralRequestMethod-1'} index: 0 valueCodeableConcept: type: CodeableConcept index: 1 slicing: slices: valueCodeableConcept: match: {} schema: type: CodeableConcept _required: true index: 1 elements: coding: index: 2 elements: system: pattern: {type: Uri, value: 'https://fhir.hl7.org.uk/STU3/CodeSystem/CareConnect-ReferralRequestMethod-1'} index: 3 version: {index: 4} userSelected: {index: 5} package_version: 1.5.0 class: extension kind: complex-type url: https://fhir.hl7.org.uk/STU3/StructureDefinition/Extension-CareConnect-ReferralRequestMethod-1 base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.0.0 required: [valueCodeableConcept]