{
  "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" : "ab93ee5f-054c-5c25-94a4-09f8cc69d62f",
  "ancestors" : {
    "2131-1" : 0
  },
  "id" : "7ba4d048-20c3-49d0-b5ba-95c3b0900a76",
  "code" : "2131-1",
  "display" : "Pacemaker surgery",
  "version" : "2023-04"
}