description: null package_name: nhsdigital.fhir.stu3 derivation: constraint name: Extension-eRS-ReferralPriority-1 type: Extension elements: url: pattern: {type: Uri, value: 'https://fhir.nhs.uk/STU3/StructureDefinition/Extension-eRS-ReferralPriority-1'} index: 0 valueCodeableConcept: type: CodeableConcept short: Urgency of referral request index: 1 slicing: slices: valueCodeableConcept: match: {} schema: type: CodeableConcept short: Urgency of referral request _required: true index: 1 elements: coding: {index: 2} required: [coding] package_version: 1.1.0 class: extension kind: complex-type url: https://fhir.nhs.uk/STU3/StructureDefinition/Extension-eRS-ReferralPriority-1 base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.0.0 required: [valueCodeableConcept]