{
  "package" : "hl7.terminology.r5@6.3.0",
  "definition" : "Patient does not know the subject, e.g. the biological parent of an adopted patient.",
  "system" : "http://terminology.hl7.org/CodeSystem/history-absent-reason",
  "property" : [ ],
  "codesystem" : "2ed4eb77-6311-5fb4-b8fa-0f93d877ffca",
  "concept_id" : "3ed9d0da-ab6b-58ba-b4df-29ccd66a7562",
  "ancestors" : {
    "subject-unknown" : 0
  },
  "id" : "1f193f55-98b4-4090-a03d-0153ba1beb22",
  "code" : "subject-unknown",
  "display" : "Subject Unknown",
  "version" : "1.0.1"
}