eHealth Infrastructure (v2019.5.3)

{
  "resourceType" : "Communication",
  "id" : "ehealth-correspondance-genexample",
  "identifier" : {
    "system" : "http://ehealth.sundhed.dk/correspondance-envelope-identifier",
    "value" : "123456"
  },
  "identifier" : {
    "system" : "http://ehealth.sundhed.dk/correspondance-letter-identifier",
    "value" : "123456"
  },
  "category" : {
    "coding" : [
      {
        "system" : "http://ehealth.sundhed.dk/correspondance-acknowledgement-code"
      }
    ]
  },
  "category" : {
    "coding" : [
      {
        "system" : "http://ehealth.sundhed.dk/correspondance-version-code"
      }
    ]
  },
  "category" : {
    "coding" : [
      {
        "system" : "http://ehealth.sundhed.dk/correspondance-type-code"
      }
    ]
  },
  "category" : {
    "coding" : [
      {
        "system" : "http://ehealth.sundhed.dk/correspondance-status-code"
      }
    ]
  },
  "subject" : {
    "identifier" : {
      "system" : "http://www.acme.com/identifiers/patient or urn:ietf:rfc:3986 if the Identifier.value itself is a full uri",
      "value" : "123456"
    }
  },
  "payload" : [
    {
      "contentAttachment" : {
        "contentType" : "text/plain; charset=UTF-8, image/png",
        "language" : "en-AU",
        "url" : "http://www.acme.com/logo-small.png",
        "title" : "Official Corporate Logo"
      }
    }
  ]
}