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{
  "resourceType": "StructureDefinition",
  "id": "England-MessageHeader",
  "url": "https://fhir.nhs.uk/StructureDefinition/England-MessageHeader",
  "version": "1.0.0",
  "name": "EnglandMessageHeader",
  "title": "England MessageHeader",
  "status": "draft",
  "date": "2023-08-18",
  "publisher": "NHS England",
  "contact": [
    {
      "name": "NHS England",
      "telecom": [
        {
          "system": "email",
          "value": "interoperabilityteam@nhs.net",
          "use": "work",
          "rank": 1
        }
      ]
    }
  ],
  "description": "This profile defines the NHS England constraints and extensions on the FHIR UK Core resource [UK Core MessageHeader](https://simplifier.net/hl7fhirukcorer4/ukcore-messageheader)",
  "purpose": "This profile carries the header data for a message exchange that is either requesting or responding to an action.",
  "copyright": "Copyright © 2023+ NHS England Licensed under the Apache License, Version 2.0 (the \\\"License\\\"); you may not use this file except in compliance with the License. You may obtain a copy of the License at  http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an \\\"AS IS\\\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. HL7® FHIR® standard Copyright © 2011+ HL7 The HL7® FHIR® standard is used under the FHIR license. You may obtain a copy of the FHIR license at  https://www.hl7.org/fhir/license.html.",
  "fhirVersion": "4.0.1",
  "kind": "resource",
  "abstract": false,
  "type": "MessageHeader",
  "baseDefinition": "https://fhir.hl7.org.uk/StructureDefinition/UKCore-MessageHeader",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "MessageHeader",
        "path": "MessageHeader",
        "constraint": [
          {
            "key": "nhse-meh-001",
            "severity": "warning",
            "human": "replacementOf extension is required for update messages",
            "expression": "event.code.where(substring($this.length()-6) = 'update').exists().not() or (event.code.where(substring($this.length()-6) = 'update').exists() and extension('https://fhir.nhs.uk/StructureDefinition/Extension-England-MessageHeaderReplacement').exists())"
          }
        ]
      },
      {
        "id": "MessageHeader.extension",
        "path": "MessageHeader.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "rules": "open"
        },
        "min": 0
      },
      {
        "id": "MessageHeader.extension:replacementOf",
        "path": "MessageHeader.extension",
        "sliceName": "replacementOf",
        "short": "An extension used to track history of message headers (Previous Bundle.identifier).",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "Extension",
            "profile": [
              "https://fhir.nhs.uk/StructureDefinition/Extension-England-MessageHeaderReplacement"
            ]
          }
        ],
        "mustSupport": true
      },
      {
        "id": "MessageHeader.event[x]",
        "path": "MessageHeader.event[x]",
        "type": [
          {
            "code": "Coding"
          }
        ],
        "mustSupport": true,
        "binding": {
          "strength": "required",
          "valueSet": "https://fhir.nhs.uk/ValueSet/England-MessageEvent"
        }
      },
      {
        "id": "MessageHeader.event[x].system",
        "path": "MessageHeader.event[x].system",
        "min": 1
      },
      {
        "id": "MessageHeader.event[x].code",
        "path": "MessageHeader.event[x].code",
        "min": 1
      },
      {
        "id": "MessageHeader.destination",
        "path": "MessageHeader.destination",
        "mustSupport": true
      },
      {
        "id": "MessageHeader.destination.receiver",
        "path": "MessageHeader.destination.receiver",
        "min": 1
      },
      {
        "id": "MessageHeader.destination.receiver.extension",
        "path": "MessageHeader.destination.receiver.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "rules": "open"
        },
        "min": 0
      },
      {
        "id": "MessageHeader.destination.receiver.extension:receiverLocalPart",
        "path": "MessageHeader.destination.receiver.extension",
        "sliceName": "receiverLocalPart",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "Extension",
            "profile": [
              "https://fhir.nhs.uk/StructureDefinition/Extension-England-MessageHeaderLocalPart"
            ]
          }
        ]
      },
      {
        "id": "MessageHeader.destination.receiver.identifier",
        "path": "MessageHeader.destination.receiver.identifier",
        "min": 1
      },
      {
        "id": "MessageHeader.destination.receiver.identifier.system",
        "path": "MessageHeader.destination.receiver.identifier.system",
        "min": 1
      },
      {
        "id": "MessageHeader.destination.receiver.identifier.value",
        "path": "MessageHeader.destination.receiver.identifier.value",
        "min": 1
      },
      {
        "id": "MessageHeader.sender",
        "path": "MessageHeader.sender",
        "mustSupport": true
      },
      {
        "id": "MessageHeader.sender.extension",
        "path": "MessageHeader.sender.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "rules": "open"
        },
        "min": 0
      },
      {
        "id": "MessageHeader.sender.extension:senderLocalPart",
        "path": "MessageHeader.sender.extension",
        "sliceName": "senderLocalPart",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "Extension",
            "profile": [
              "https://fhir.nhs.uk/StructureDefinition/Extension-England-MessageHeaderLocalPart"
            ]
          }
        ]
      },
      {
        "id": "MessageHeader.sender.identifier",
        "path": "MessageHeader.sender.identifier",
        "min": 1,
        "mustSupport": true
      },
      {
        "id": "MessageHeader.sender.identifier.system",
        "path": "MessageHeader.sender.identifier.system",
        "min": 1
      },
      {
        "id": "MessageHeader.sender.identifier.value",
        "path": "MessageHeader.sender.identifier.value",
        "min": 1
      },
      {
        "id": "MessageHeader.author.identifier",
        "path": "MessageHeader.author.identifier",
        "min": 1
      },
      {
        "id": "MessageHeader.author.identifier.system",
        "path": "MessageHeader.author.identifier.system",
        "min": 1
      },
      {
        "id": "MessageHeader.author.identifier.value",
        "path": "MessageHeader.author.identifier.value",
        "min": 1
      },
      {
        "id": "MessageHeader.source",
        "path": "MessageHeader.source",
        "mustSupport": true
      },
      {
        "id": "MessageHeader.responsible.identifier",
        "path": "MessageHeader.responsible.identifier",
        "min": 1
      },
      {
        "id": "MessageHeader.responsible.identifier.system",
        "path": "MessageHeader.responsible.identifier.system",
        "min": 1
      },
      {
        "id": "MessageHeader.responsible.identifier.value",
        "path": "MessageHeader.responsible.identifier.value",
        "min": 1
      },
      {
        "id": "MessageHeader.reason",
        "path": "MessageHeader.reason",
        "binding": {
          "strength": "required",
          "valueSet": "https://fhir.nhs.uk/ValueSet/England-MessageReasonCode"
        }
      },
      {
        "id": "MessageHeader.reason.coding.system",
        "path": "MessageHeader.reason.coding.system",
        "min": 1
      },
      {
        "id": "MessageHeader.reason.coding.code",
        "path": "MessageHeader.reason.coding.code",
        "min": 1
      },
      {
        "id": "MessageHeader.focus",
        "path": "MessageHeader.focus",
        "min": 1
      },
      {
        "id": "MessageHeader.focus.reference",
        "path": "MessageHeader.focus.reference",
        "min": 1
      }
    ]
  }
}

name : EnglandMessageHeader

{

}