{
  "package" : "hl7.fhir.r4.examples@4.0.1",
  "definition" : "Measurement approximating the distance related to the structure between the internal limiting membrane (ILM) and the outer boarder of the retinal nerve fiber layer (RNFL); see Section III.6 \\\"Retinal Thickness Definition\\\" in PS3.17",
  "system" : "http://dicom.nema.org/resources/ontology/DCM",
  "property" : [ ],
  "codesystem" : "5f336dd4-db81-5653-939a-25648922f08e",
  "concept_id" : "96bc4c18-fbfc-50f7-b707-badeebfe3c2c",
  "ancestors" : {
    "111925" : 0
  },
  "id" : "53508b51-652c-4f68-bb04-4841201a1d25",
  "code" : "111925",
  "display" : "Retinal nerve fiber layer thickness",
  "version" : "01"
}