Generic example

{
  "resourceType" : "DocumentReference",
  "id" : "example",
  "contained" : [{
    "resourceType" : "Practitioner",
    "id" : "a2",
    "name" : [{
      "family" : "Smitty",
      "given" : ["Gerald"]
    }]
  }],
  "extension" : [{
    "url" : "http://hl7.org/fhir/StructureDefinition/workflow-supportingInfo",
    "valueReference" : {
      "reference" : "Patient/xcda",
      "identifier" : {
        "system" : "urn:ietf:rfc:3986",
        "value" : "urn:oid:1.3.6.1.4.1.21367.2005.3.7.2345"
      }
    }
  },
  {
    "url" : "http://hl7.org/fhir/StructureDefinition/documentreference-sourcepatient",
    "valueReference" : {
      "reference" : "Patient/xcda"
    }
  }],
  "identifier" : [{
    "type" : {
      "text" : "entryUUID"
    },
    "system" : "urn:ietf:rfc:3986",
    "value" : "urn:oid:1.3.6.1.4.1.21367.2005.3.7.1234"
  },
  {
    "type" : {
      "text" : "uniqueId"
    },
    "system" : "urn:ietf:rfc:3986",
    "value" : "urn:oid:1.3.6.1.4.1.21367.2005.3.7"
  }],
  "status" : "current",
  "docStatus" : "preliminary",
  "type" : {
    "coding" : [{
      "system" : "http://loinc.org",
      "code" : "34108-1",
      "display" : "Outpatient Note"
    }]
  },
  "category" : [{
    "coding" : [{
      "system" : "http://ihe.net/xds/connectathon/classCodes",
      "code" : "History and Physical",
      "display" : "History and Physical"
    }]
  }],
  "subject" : {
    "reference" : "Patient/xcda"
  },
  "context" : [{
    "reference" : "Encounter/xcda"
  }],
  "event" : [{
    "concept" : {
      "coding" : [{
        "system" : "http://ihe.net/xds/connectathon/eventCodes",
        "code" : "T-D8200",
        "display" : "Arm"
      }]
    }
  }],
  "facilityType" : {
    "coding" : [{
      "system" : "http://www.ihe.net/xds/connectathon/healthcareFacilityTypeCodes",
      "code" : "Outpatient",
      "display" : "Outpatient"
    }]
  },
  "practiceSetting" : {
    "coding" : [{
      "system" : "http://www.ihe.net/xds/connectathon/practiceSettingCodes",
      "code" : "General Medicine",
      "display" : "General Medicine"
    }]
  },
  "period" : {
    "start" : "2004-12-23T08:00:00+11:00",
    "end" : "2004-12-23T08:01:00+11:00"
  },
  "date" : "2005-12-24T09:43:41+11:00",
  "author" : [{
    "reference" : "Practitioner/xcda1"
  },
  {
    "reference" : "#a2"
  }],
  "attester" : [{
    "mode" : {
      "coding" : [{
        "system" : "http://hl7.org/fhir/composition-attestation-mode",
        "code" : "official"
      }]
    },
    "party" : {
      "reference" : "Organization/f001"
    }
  }],
  "custodian" : {
    "reference" : "Organization/f001"
  },
  "relatesTo" : [{
    "code" : {
      "coding" : [{
        "system" : "http://hl7.org/fhir/document-relationship-type",
        "code" : "appends"
      }]
    },
    "target" : {
      "reference" : "DocumentReference/example"
    }
  }],
  "description" : "Physical",
  "securityLabel" : [{
    "coding" : [{
      "system" : "http://terminology.hl7.org/CodeSystem/v3-Confidentiality",
      "code" : "V",
      "display" : "very restricted"
    }]
  }],
  "content" : [{
    "attachment" : {
      "contentType" : "application/hl7-v3+xml",
      "language" : "en-US",
      "url" : "http://example.org/xds/mhd/Binary/07a6483f-732b-461e-86b6-edb665c45510",
      "size" : "3654",
      "hash" : "2jmj7l5rSw0yVb/vlWAYkK/YBwk=",
      "title" : "Physical",
      "creation" : "2005-12-24T09:35:00+11:00"
    },
    "profile" : [{
      "valueCoding" : {
        "system" : "urn:oid:1.3.6.1.4.1.19376.1.2.3",
        "code" : "urn:ihe:pcc:handp:2008",
        "display" : "History and Physical Specification"
      }
    }]
  }]
}