{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "The 4th image in the AAPM TG18-LN12 set used for DICOM grayscale calibration. See [AAPM OR 03]",
  "system" : "http://dicom.nema.org/resources/ontology/DCM",
  "property" : [ ],
  "codesystem" : "edcf6828-b2c8-5028-b7f7-246cb8d5ac80",
  "concept_id" : "9e53dca3-e4e7-526e-9d31-6aa91a6c20ac",
  "ancestors" : {
    "109826" : 0
  },
  "id" : "10fcd533-b6ee-4b08-833b-f77df1dac7ca",
  "code" : "109826",
  "display" : "TG18-LN12-04 Pattern",
  "version" : "01"
}