{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "A series of connected line segments with ordered vertices denoted by (column,row) pairs; if the first and last vertices are the same, it is a closed polygon.",
  "system" : "http://terminology.hl7.org/CodeSystem/v3-ActCode",
  "property" : [ {
    "_uri" : "http://hl7.org/fhir/concept-properties#parent",
    "code" : "parent",
    "_implicit" : true,
    "valueCode" : "_ROIOverlayShape"
  } ],
  "codesystem" : "d73ae040-3e88-581f-8c74-bc9b7419407a",
  "concept_id" : "2c15de6e-174f-5446-889b-78f1bf5c83be",
  "ancestors" : {
    "POLY" : 0,
    "_ROIOverlayShape" : 1
  },
  "id" : "04eddac5-3ccf-44c4-b415-23c0a60d6e9d",
  "code" : "POLY",
  "display" : "polyline",
  "version" : "2018-08-12"
}