{
  "package" : "us.nlm.vsac@0.21.0",
  "definition" : null,
  "system" : "https://www.cdc.gov/nhsn/cdaportal/terminology/codesystem/cdcnhsn.html",
  "property" : [ ],
  "codesystem" : "078444ba-7844-5424-a8ae-aaa5dd3908d0",
  "concept_id" : "6155f162-a1a2-5ed8-be02-4a16439e1428",
  "ancestors" : {
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  "id" : "d4c55000-460e-4ec4-b575-21817217fe9a",
  "code" : "1934-9",
  "display" : "Positive detection of viral antigen or antibody",
  "version" : "2023-04"
}