{
  "package" : "hl7.fhir.r4.examples@4.0.1",
  "definition" : "The AAPM TG18-AD Pattern used for visual evaluation of the reflection of ambient light from the display. See [AAPM OR 03]",
  "system" : "http://dicom.nema.org/resources/ontology/DCM",
  "property" : [ ],
  "codesystem" : "5f336dd4-db81-5653-939a-25648922f08e",
  "concept_id" : "652413cc-d2f8-510b-a077-f4f3af3675ce",
  "ancestors" : {
    "109845" : 0
  },
  "id" : "27dff307-8e50-4d89-b64a-fa6efc168f6b",
  "code" : "109845",
  "display" : "TG18-AD Pattern",
  "version" : "01"
}