{
  "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" : "47fad824-09ef-5dcd-92e3-a2681f20c32a",
  "ancestors" : {
    "2124-6" : 0
  },
  "id" : "0c23009e-7bd1-41b0-9ffd-71a6f46ac4e1",
  "code" : "2124-6",
  "display" : "Knee prosthesis",
  "version" : "2023-04"
}