{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "The Holladay 2 IOL calculation formula",
  "system" : "http://dicom.nema.org/resources/ontology/DCM",
  "property" : [ ],
  "codesystem" : "edcf6828-b2c8-5028-b7f7-246cb8d5ac80",
  "concept_id" : "88f75977-94a7-530a-8b4c-b995e4f761e2",
  "ancestors" : {
    "111763" : 0
  },
  "id" : "e3b92b14-593a-4fa7-a494-2ae5709bab21",
  "code" : "111763",
  "display" : "Holladay 2",
  "version" : "01"
}