{
  "package" : "hl7.terminology@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" : "5cb4ce58-6993-563a-b42c-94182e96a4b6",
  "concept_id" : "0c3bbd0c-e9d7-594e-a541-9bc39bf16ce9",
  "ancestors" : {
    "M" : 0
  },
  "id" : "19b2c802-d3e0-43a7-8d85-89ccd48191ec",
  "code" : "M",
  "display" : "Mesial",
  "version" : "1.0.0"
}