{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "Area(s) of reduced intensity on T1 weighted images relative to the surrounding white matter. These may be indicative of age-related or neurodegenerative white matter lesions, and may be co-located with areas of white matter T2 hyperintensity, but the concept is specifically confined to the MR appearance on T1 weighted images",
  "system" : "http://dicom.nema.org/resources/ontology/DCM",
  "property" : [ ],
  "codesystem" : "edcf6828-b2c8-5028-b7f7-246cb8d5ac80",
  "concept_id" : "5a7ff547-a0e2-5c8d-955b-a3bbe66e892c",
  "ancestors" : {
    "110701" : 0
  },
  "id" : "76572721-5ecd-4522-87bc-c2829948a876",
  "code" : "110701",
  "display" : "White Matter T1 Hypointensity",
  "version" : "01"
}