{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "A circle defined by two (column,row) pairs. The first point is the center of the circle and the second point is a point on the perimeter of the circle.",
  "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" : "423e5fc3-025b-5291-b255-5d206cb6710a",
  "ancestors" : {
    "CIRCLE" : 0,
    "_ROIOverlayShape" : 1
  },
  "id" : "880335fb-c540-4020-aab2-f6a594eddd6b",
  "code" : "CIRCLE",
  "display" : "circle",
  "version" : "2018-08-12"
}