{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "An extension of the two-zone strategy in which test points where the second stimulus is not seen are presented with a third stimulus at maximum brightness",
  "system" : "http://dicom.nema.org/resources/ontology/DCM",
  "property" : [ ],
  "codesystem" : "edcf6828-b2c8-5028-b7f7-246cb8d5ac80",
  "concept_id" : "79a23dc9-509c-511b-a9f1-cb7579681086",
  "ancestors" : {
    "111823" : 0
  },
  "id" : "4bedeec7-b931-4728-834c-5a1d887d5639",
  "code" : "111823",
  "display" : "Visual Field Three-Zone Test Strategy",
  "version" : "01"
}