{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "The TG18-GQB Pattern used for the quantitative assessment of veiling glare. This pattern is identical to AAPM TG18-GQ Pattern except eliminating the central black circle. See [AAPM OR 03]",
  "system" : "http://dicom.nema.org/resources/ontology/DCM",
  "property" : [ ],
  "codesystem" : "edcf6828-b2c8-5028-b7f7-246cb8d5ac80",
  "concept_id" : "865a29a9-c026-53d1-90c5-e4ce84b8732b",
  "ancestors" : {
    "109869" : 0
  },
  "id" : "0a636591-19b9-4adc-92a0-3f3e012507b2",
  "code" : "109869",
  "display" : "TG18-GQB Pattern",
  "version" : "01"
}