description: null package_name: NHSD.Assets.STU3 derivation: constraint name: Extension-eRS-Appointment-1 type: Extension elements: url: pattern: {type: Uri, value: 'https://fhir.nhs.uk/STU3/StructureDefinition/Extension-eRS-Appointment-1'} index: 0 valueReference: type: Reference refers: ['https://fhir.nhs.uk/STU3/StructureDefinition/eRS-Appointment-1'] index: 1 slicing: slices: valueReference: match: {} schema: type: Reference refers: ['https://fhir.nhs.uk/STU3/StructureDefinition/eRS-Appointment-1'] index: 1 package_version: 1.0.0 class: extension kind: complex-type url: https://fhir.nhs.uk/STU3/StructureDefinition/Extension-eRS-Appointment-1 base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.0.0