{
  "package" : "hl7.terminology.r5@6.3.0",
  "definition" : "A Region of Interest (ROI) specified for an image using an overlay shape. Typically used to make reference to specific regions in images, e.g., to specify the location of a radiologic finding in an image or to specify the site of a physical finding by \\\"circling\\\" a region in a schematic picture of a human body. The units of the coordinate values are in pixels. The origin is in the upper left hand corner, with positive X values going to the right and positive Y values going down. The relationship between a ROI and its referenced Act is specified through an ActRelationship of type \\\"subject\\\" (SUBJ), which must always be present.",
  "system" : "http://terminology.hl7.org/CodeSystem/v3-ActClass",
  "property" : [ {
    "_uri" : "http://hl7.org/fhir/concept-properties#status",
    "code" : "status",
    "valueCode" : "active"
  }, {
    "_uri" : "http://terminology.hl7.org/CodeSystem/utg-concept-properties#v3-internal-id",
    "code" : "internalId",
    "valueCode" : "16392"
  }, {
    "_uri" : "http://terminology.hl7.org/CodeSystem/utg-concept-properties#rim-Class",
    "code" : "Name:Class",
    "valueCode" : "OverlayROL"
  }, {
    "_uri" : "http://hl7.org/fhir/concept-properties#parent",
    "code" : "subsumedBy",
    "valueCode" : "_ActClassROI"
  }, {
    "_uri" : "http://terminology.hl7.org/CodeSystem/utg-concept-properties#rim-Participation-act",
    "code" : "Name:Participation:act:Act",
    "valueString" : "&"
  } ],
  "codesystem" : "079d6430-bd37-5c69-b49c-9bac8f0cbce5",
  "concept_id" : "3894367d-d9e6-5d58-866d-3e47a68699f0",
  "ancestors" : {
    "ACT" : 3,
    "OBS" : 2,
    "ROIOVL" : 0,
    "_ActClassROI" : 1
  },
  "id" : "34bcf21b-948f-4398-9562-6a23a22b328a",
  "code" : "ROIOVL",
  "display" : "overlay ROI",
  "version" : "4.0.0"
}