{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "Regions of Interest (ROI) within a subject Act. Primarily used for making secondary observations on a subset of a subject observation. 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" : [ {
    "code" : "notSelectable",
    "valueBoolean" : true
  }, {
    "_uri" : "http://hl7.org/fhir/concept-properties#parent",
    "code" : "parent",
    "_implicit" : true,
    "valueCode" : "OBS"
  }, {
    "_uri" : "http://hl7.org/fhir/concept-properties#child",
    "code" : "child",
    "_implicit" : true,
    "valueCode" : "ROIBND"
  }, {
    "_uri" : "http://hl7.org/fhir/concept-properties#child",
    "code" : "child",
    "_implicit" : true,
    "valueCode" : "ROIOVL"
  } ],
  "codesystem" : "e17e87cb-d800-524d-8133-b28efac7773e",
  "concept_id" : "0aa9fa87-6041-527b-b64d-b3ad1a326ec2",
  "ancestors" : {
    "ACT" : 2,
    "OBS" : 1,
    "_ActClassROI" : 0
  },
  "id" : "33eb6c1c-56dc-4234-b943-c34ad0f3d231",
  "code" : "_ActClassROI",
  "display" : "ActClassROI",
  "version" : "2018-08-12"
}