{
  "package" : "hl7.terminology.r4@6.3.0",
  "definition" : "variable represents a confounder.",
  "system" : "http://terminology.hl7.org/CodeSystem/variable-role",
  "property" : [ ],
  "codesystem" : "f4e7a60f-7910-5742-ad7d-d2b77c1eceaf",
  "concept_id" : "9e9d0475-9c08-52de-8300-47a1e339a30b",
  "ancestors" : {
    "confounder" : 0
  },
  "id" : "5d1f6683-5033-4c19-8f68-d0006b679ad9",
  "code" : "confounder",
  "display" : "confounder",
  "version" : "2.0.0"
}