{
  "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" : "822f513b-1e26-56f3-97d5-f284d5e20948",
  "ancestors" : {
    "1856-4" : 0
  },
  "id" : "054bcb21-4cd7-437e-8b7f-db33de3f2ac7",
  "code" : "1856-4",
  "display" : "Number of patients meeting high risk criteria for influenza vaccination",
  "version" : "2023-04"
}