1. C10 Malignant neoplasm of oropharynx

    Use Additional code to identify:
    alcohol abuse and dependence (F10.-)
    exposure to environmental tobacco smoke (Z77.22)
    exposure to tobacco smoke in the perinatal period (P96.81)
    history of tobacco dependence (Z87.891)
    occupational exposure to environmental tobacco smoke (Z57.31)
    tobacco dependence (F17.-)
    tobacco use (Z72.0)

    Excludes2

    • malignant neoplasm of tonsil (C09.-)
    1. C10.0 Malignant neoplasm of vallecula

    2. C10.1 Malignant neoplasm of anterior surface of epiglottis

      Inclusion term(s):

      • Malignant neoplasm of epiglottis, free border [margin]
      • Malignant neoplasm of glossoepiglottic fold(s)
    3. C10.2 Malignant neoplasm of lateral wall of oropharynx

    4. C10.3 Malignant neoplasm of posterior wall of oropharynx

    5. C10.4 Malignant neoplasm of branchial cleft

      Inclusion term(s):

      • Malignant neoplasm of branchial cyst [site of neoplasm]
    6. C10.8 Malignant neoplasm of overlapping sites of oropharynx

      Inclusion term(s):

      • Malignant neoplasm of junctional region of oropharynx
    7. C10.9 Malignant neoplasm of oropharynx, unspecified

Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.