{
  "resourceType": "CodeSystem",
  "id": "icd-o-3-topo",
  "meta": {
  "versionId": "1",
  "lastUpdated": "2022-10-19T21:45:20.211+00:00"
  },
  "url": "http://hl7.org/fhir/sid/icd-o-3-topo",
  "version": "20190819",
  "name": "ICD-O-3-TOPO",
  "title": "International Classification of Diseases for Oncology, Third Edition, Topography Section",
  "status": "draft",
  "experimental": true,
  "publisher": "World Health Organization",
  "valueSet": "http://hl7.org/fhir/sid/icd-o-3-topo?vs",
  "content": "complete",
  "concept": [ {
  "code": "C00",
  "display": "LIP",
  "concept": [ {
    "code": "C000",
    "display": "External upper lip",
    "designation": [ {
    "value": "skin of upper lip"
    }, {
    "value": "Upper lip, NOS"
    }, {
    "value": "Vermilion border of upper lip"
    } ]
  }, {
    "code": "C001",
    "display": "External lower lip",
    "designation": [ {
    "value": "Lower lip, NOS"
    }, {
    "value": "skin of lower lip"
    }, {
    "value": "Vermilion border of lower lip"
    } ]
  }, {
    "code": "C002",
    "display": "External lip, NOS"
  }, {
    "code": "C003",
    "display": "Mucosa of upper lip",
    "designation": [ {
    "value": "Frenulum of upper lip"
    } ]
  }, {
    "code": "C004",
    "display": "Mucosa of lower lip",
    "designation": [ {
    "value": "Frenulum of lower lip"
    }, {
    "value": "Inner aspect of lower lip"
    } ]
  }, {
    "code": "C005",
    "display": "Mucosa of lip, NOS",
    "designation": [ {
    "value": "Frenulum labii, NOS"
    }, {
    "value": "Frenulum of lip, NOS"
    }, {
    "value": "Inner aspect of lip, NOS"
    }, {
    "value": "Internal lip, NOS"
    } ]
  }, {
    "code": "C006",
    "display": "Commissure of lip",
    "designation": [ {
    "value": "Labial commissure"
    } ]
  }, {
    "code": "C008",
    "display": "Overlapping lesion of lip"
  }, {
    "code": "C009",
    "display": "Lip, NOS"
  } ]
  }, {
  "code": "C01",
  "display": "BASE OF TONGUE",
  "concept": [ {
    "code": "C019",
    "display": "Base of tongue, NOS",
    "designation": [ {
    "value": "Dorsal surface of base of tongue"
    }, {
    "value": "Posterior third of tongue"
    }, {
    "value": "Posterior tongue, NOS"
    }, {
    "value": "Root of tongue"
    } ]
  } ]
  }, {
  "code": "C02",
  "display": "OTHER AND UNSPECIFIED PARTS OF TONGUE",
  "concept": [ {
    "code": "C020",
    "display": "Dorsal surface of tongue, NOS",
    "designation": [ {
    "value": "Anterior 2/3 of tongue, dorsal surface"
    }, {
    "value": "Dorsal surface of anterior tongue"
    }, {
    "value": "Midline of tongue"
    } ]
  }, {
    "code": "C021",
    "display": "Border of tongue",
    "designation": [ {
    "value": "Tip of tongue"
    } ]
  }, {
    "code": "C022",
    "display": "Ventral surface of tongue, NOS",
    "designation": [ {
    "value": "Anterior 2/3 of tongue, ventral surface"
    }, {
    "value": "Frenulum linguae"
    }, {
    "value": "Ventral surface of anterior tongue, NOS"
    } ]
  }, {
    "code": "C023",
    "display": "Anterior 2/3 of tongue, NOS",
    "designation": [ {
    "value": "Anterior tongue, NOS"
    } ]
  }, {
    "code": "C024",
    "display": "Lingual tonsil"
  }, {
    "code": "C028",
    "display": "Overlapping lesion of tongue",
    "designation": [ {
    "value": "Junctional zone of tongue"
    } ]
  }, {
    "code": "C029",
    "display": "Tongue, NOS",
    "designation": [ {
    "value": "Lingual, NOS"
    } ]
  } ]
  }, {
  "code": "C03",
  "display": "GUM",
  "concept": [ {
    "code": "C030",
    "display": "Upper gum",
    "designation": [ {
    "value": "Upper alveolar mucosa"
    }, {
    "value": "Upper alveolar ridge mucosa"
    }, {
    "value": "Upper alveolus"
    }, {
    "value": "Upper gingiva"
    } ]
  }, {
    "code": "C031",
    "display": "Lower gum",
    "designation": [ {
    "value": "Lower alveolar mucosa"
    }, {
    "value": "Lower alveolar ridge mucosa"
    }, {
    "value": "Lower alveolus"
    }, {
    "value": "Lower gingiva"
    } ]
  }, {
    "code": "C039",
    "display": "Gum, NOS",
    "designation": [ {
    "value": "Alveolar mucosa, NOS"
    }, {
    "value": "Alveolar ridge mucosa, NOS"
    }, {
    "value": "Alveolus, NOS"
    }, {
    "value": "Periodontal tissue"
    }, {
    "value": "Tooth socket"
    } ]
  } ]
  }, {
  "code": "C04",
  "display": "FLOOR OF MOUTH",
  "concept": [ {
    "code": "C040",
    "display": "Anterior floor of mouth"
  }, {
    "code": "C041",
    "display": "Lateral floor of mouth"
  }, {
    "code": "C048",
    "display": "Overlapping lesion of floor of mouth"
  }, {
    "code": "C049",
    "display": "Floor of mouth, NOS"
  } ]
  }, {
  "code": "C05",
  "display": "PALATE",
  "concept": [ {
    "code": "C050",
    "display": "Hard palate"
  }, {
    "code": "C051",
    "display": "Soft palate, NOS"
  }, {
    "code": "C052",
    "display": "Uvula"
  }, {
    "code": "C058",
    "display": "Overlapping lesion of palate",
    "designation": [ {
    "value": "Junction of hard and soft palate"
    } ]
  }, {
    "code": "C059",
    "display": "Palate, NOS",
    "designation": [ {
    "value": "Roof of mouth"
    } ]
  } ]
  }, {
  "code": "C06",
  "display": "OTHER AND UNSPECIFIED PARTS OF MOUTH",
  "concept": [ {
    "code": "C060",
    "display": "Cheek mucosa",
    "designation": [ {
    "value": "Buccal mucosa"
    }, {
    "value": "Internal cheek"
    } ]
  }, {
    "code": "C061",
    "display": "Vestibule of mouth",
    "designation": [ {
    "value": "Buccal sulcus"
    }, {
    "value": "Labial sulcus"
    } ]
  }, {
    "code": "C062",
    "display": "Retromolar area",
    "designation": [ {
    "value": "Retromolar triangle"
    }, {
    "value": "Retromolar trigone"
    } ]
  }, {
    "code": "C068",
    "display": "Overlapping lesion of other and unspecified parts of mouth"
  }, {
    "code": "C069",
    "display": "Mouth, NOS",
    "designation": [ {
    "value": "Buccal cavity"
    }, {
    "value": "Minor salivary gland, NOS"
    }, {
    "value": "Oral cavity"
    }, {
    "value": "Oral mucosa"
    } ]
  } ]
  }, {
  "code": "C07",
  "display": "PAROTID GLAND",
  "concept": [ {
    "code": "C079",
    "display": "Parotid gland",
    "designation": [ {
    "value": "Parotid gland duct"
    }, {
    "value": "Parotid, NOS"
    }, {
    "value": "Stensen duct"
    } ]
  } ]
  }, {
  "code": "C08",
  "display": "OTHER AND UNSPECIFIED MAJOR SALIVARY GLANDS",
  "concept": [ {
    "code": "C080",
    "display": "Submandibular gland",
    "designation": [ {
    "value": "Submaxillary gland"
    }, {
    "value": "Submaxillary gland duct"
    }, {
    "value": "Wharton duct"
    } ]
  }, {
    "code": "C081",
    "display": "Sublingual gland",
    "designation": [ {
    "value": "Sublingual gland duct"
    } ]
  }, {
    "code": "C088",
    "display": "Overlapping lesion of major salivary glands"
  }, {
    "code": "C089",
    "display": "Major salivary gland, NOS",
    "designation": [ {
    "value": "minor salivary gland, NOS"
    }, {
    "value": "Salivary gland, NOS"
    } ]
  } ]
  }, {
  "code": "C09",
  "display": "TONSIL",
  "concept": [ {
    "code": "C090",
    "display": "Tonsillar fossa"
  }, {
    "code": "C091",
    "display": "Tonsillar pillar",
    "designation": [ {
    "value": "Faucial pillar"
    }, {
    "value": "Glossopalatine fold"
    } ]
  }, {
    "code": "C098",
    "display": "Overlapping lesion of tonsil"
  }, {
    "code": "C099",
    "display": "Tonsil, NOS",
    "designation": [ {
    "value": "Faucial tonsil"
    }, {
    "value": "Palatine tonsil"
    } ]
  } ]
  }, {
  "code": "C10",
  "display": "OROPHARYNX",
  "concept": [ {
    "code": "C100",
    "display": "Vallecula"
  }, {
    "code": "C101",
    "display": "Anterior surface of epiglottis"
  }, {
    "code": "C102",
    "display": "Lateral wall of oropharynx",
    "designation": [ {
    "value": "Lateral wall of mesopharynx"
    } ]
  }, {
    "code": "C103",
    "display": "Posterior wall of oropharynx",
    "designation": [ {
    "value": "Posterior wall of mesopharynx"
    } ]
  }, {
    "code": "C104",
    "display": "Branchial cleft"
  }, {
    "code": "C108",
    "display": "Overlapping lesion of oropharynx",
    "designation": [ {
    "value": "Junctional region of oropharynx"
    } ]
  }, {
    "code": "C109",
    "display": "Oropharynx, NOS",
    "designation": [ {
    "value": "Fauces, NOS"
    }, {
    "value": "Mesopharynx, NOS"
    } ]
  } ]
  }, {
  "code": "C11",
  "display": "NASOPHARYNX",
  "concept": [ {
    "code": "C110",
    "display": "Superior wall of nasopharynx",
    "designation": [ {
    "value": "Roof of nasopharynx"
    } ]
  }, {
    "code": "C111",
    "display": "Posterior wall of nasopharynx",
    "designation": [ {
    "value": "Adenoid"
    }, {
    "value": "Pharyngeal tonsil"
    } ]
  }, {
    "code": "C112",
    "display": "Lateral wall of nasopharynx",
    "designation": [ {
    "value": "Fossa of Rosenmuller"
    } ]
  }, {
    "code": "C113",
    "display": "Anterior wall of nasopharynx",
    "designation": [ {
    "value": "Choana"
    }, {
    "value": "Nasopharyngeal surface of soft palate"
    }, {
    "value": "Pharyngeal fornix"
    }, {
    "value": "Posterior margin of nasal septum"
    } ]
  }, {
    ...