description: This MessageHeader has been constrained to represent a message header for an event message, to support the Events Management Service project. package_name: nhsdigital.fhir.stu3 derivation: constraint name: EMS-MessageHeader-1 type: MessageHeader elements: response: {index: 17} enterer: type: Reference refers: ['https://fhir.hl7.org.uk/STU3/StructureDefinition/CareConnect-Organization-1'] index: 12 author: type: Reference refers: ['https://fhir.hl7.org.uk/STU3/StructureDefinition/CareConnect-Organization-1'] index: 13 reason: {index: 16} responsible: type: Reference refers: ['https://fhir.hl7.org.uk/STU3/StructureDefinition/CareConnect-Organization-1'] index: 14 elements: reference: {index: 15} required: [reference] extension: index: 1 slicing: rules: open discriminator: - {path: url, type: value} min: null slices: eventMessageType: match: {url: null} schema: {type: Extension, url: h, index: 2} min: 1 max: 1 event: index: 3 elements: system: pattern: {type: Uri, value: 'https://fhir.nhs.uk/STU3/CodeSystem/EMS-EventType-1'} index: 4 code: {index: 5} display: {index: 6} required: [display, system, code] id: {index: 0} sender: type: Reference refers: ['https://fhir.hl7.org.uk/STU3/StructureDefinition/CareConnect-Organization-1'] index: 10 focus: type: Reference refers: ['http://hl7.org/fhir/StructureDefinition/Resource', 'https://fhir.hl7.org.uk/STU3/StructureDefinition/CareConnect-Encounter-1', 'https://fhir.nhs.uk/STU3/StructureDefinition/EMS-Communication-1'] index: 18 elements: reference: {index: 19} required: [reference] timestamp: {index: 11} receiver: type: Reference refers: ['https://fhir.hl7.org.uk/STU3/StructureDefinition/CareConnect-Organization-1', 'https://fhir.nhs.uk/STU3/StructureDefinition/EMS-HealthcareService-1'] index: 8 elements: reference: {index: 9} required: [reference] destination: {index: 7} package_version: 1.2.0 extensions: eventMessageType: {url: h, min: 1, max: 1, type: Extension, index: 2} class: profile kind: resource url: https://fhir.nhs.uk/STU3/StructureDefinition/EMS-MessageHeader-1 base: http://hl7.org/fhir/StructureDefinition/MessageHeader version: 1.2.0 required: [focus, id, responsible]