An example of a patient link notification

{
  "resourceType": "MessageDefinition",
  "id": "patient-link-notification",
  "text": {
    "status": "generated",
    "div": "<div xmlns=\"http://www.w3.org/1999/xhtml\">Link Patients Notification</div>"
  },
  "url": "http://hl7.org/fhir/MessageDefinition/patient-link-notification",
  "identifier": [
    {
      "system": "urn:ietf:rfc:3986",
      "value": "urn:oid:2.16.840.1.113883.4.642.15.2"
    }
  ],
  "version": "1",
  "name": "PATIENT-LINK-NOTIFICATION",
  "title": "Link Patients Notification",
  "status": "draft",
  "experimental": true,
  "date": "2017-02-03",
  "publisher": "Health Level Seven, Int'l",
  "contact": [
    {
      "telecom": [
        {
          "system": "url",
          "value": "http://hl7.org"
        }
      ]
    }
  ],
  "description": "Notification of two patient records that represent the same individual that require an established linkage.",
  "useContext": [
    {
      "code": {
        "system": "http://terminology.hl7.org/CodeSystem/usage-context-type",
        "code": "focus"
      },
      "valueCodeableConcept": {
        "coding": [
          {
            "system": "http://terminology.hl7.org/CodeSystem/variant-state",
            "code": "positive"
          }
        ]
      }
    }
  ],
  "jurisdiction": [
    {
      "coding": [
        {
          "system": "urn:iso:std:iso:3166",
          "code": "US",
          "display": "United States of America (the)"
        }
      ]
    }
  ],
  "purpose": "Notifies recipient systems that two patients have been 'linked' - meaning they represent the same individual",
  "copyright": "� HL7.org 2011+",
  "base": "http://hl7.org/fhir/MessageDefinition/example",
  "eventCoding": {
    "system": "http://example.org/fhir/message-events",
    "code": "admin-notify"
  },
  "category": "notification",
  "focus": [
    {
      "code": "Patient",
      "profile": "http://hl7.org/fhir/StructureDefinition/example",
      "min": 2,
      "max": "2"
    }
  ],
  "allowedResponse": [
    {
      "message": "http://hl7.org/fhir/MessageDefinition/patient-link-response",
      "situation": "Optional response message that may provide additional information"
    }
  ]
}