{
  "package" : "hl7.terminology.r4@6.3.0",
  "definition" : "The surface of a tooth that is closest to the midline (middle) of the face.",
  "system" : "http://terminology.hl7.org/CodeSystem/FDI-surface",
  "property" : [ ],
  "codesystem" : "f3b88b39-2e1c-5708-86cc-b77885b0d8c0",
  "concept_id" : "0c3bbd0c-e9d7-594e-a541-9bc39bf16ce9",
  "ancestors" : {
    "M" : 0
  },
  "id" : "076f3bb5-5f33-4d6e-aa01-251863070b31",
  "code" : "M",
  "display" : "Mesial",
  "version" : "1.0.0"
}