Example of using Provenance for a Patient Merge.

{
  "resourceType" : "Provenance",
  "id" : "ex-patient-merged",
  "target" : [{
    "reference" : "Patient/example-merge-survivor"
  },
  {
    "reference" : "Patient/example-merge-subsumed"
  },
  {
    "reference" : "Observation/body-height-merged"
  }],
  "recorded" : "2024-06-01T19:00:00Z",
  "authorization" : [null],
  "why" : "Merge Patient Records that were matched by SSN and confirmed by review, with the data linked to the non-surviving patient is also fixed up to point at the surviving patient.",
  "activity" : {
    "coding" : [{
      "system" : "http://terminology.hl7.org/CodeSystem/v3-ActReason",
      "code" : "MDATA"
    }]
  },
  "patient" : {
    "reference" : "Patient/example-merge-survivor"
  },
  "agent" : [{
    "type" : {
      "coding" : [{
        "system" : "http://terminology.hl7.org/CodeSystem/provenance-participant-type",
        "code" : "author"
      }]
    },
    "who" : {
      "reference" : "http://example.org/Practitioner/ex-practitioner"
    }
  }],
  "entity" : [{
    "role" : "removal",
    "what" : {
      "reference" : "Patient/example-merge-subsumed",
      "identifier" : {
        "system" : "http://example.org/mrn",
        "value" : "MRN-002"
      },
      "display" : "Removed Duplicate Patient Record"
    }
  },
  {
    "role" : "revision",
    "what" : {
      "reference" : "Patient/example-merge-survivor",
      "identifier" : {
        "system" : "http://example.org/mrn",
        "value" : "MRN-001"
      },
      "display" : "Surviving Patient Record after Merge"
    }
  },
  {
    "role" : "revision",
    "what" : {
      "reference" : "Observation/body-height-merged",
      "display" : "Body Height Observation from previous Patient is fixed to point at the surviving Patient after Merge"
    }
  }]
}