1. C03 Malignant neoplasm of gum

    Use additional code to identify:
    alcohol abuse and dependence (F10.-)
    history of tobacco dependence (Z87.891)
    tobacco dependence (F17.-)
    tobacco use (Z72.0)


    • malignant neoplasm of alveolar (ridge) mucosa
    • malignant neoplasm of gingiva


    1. C03.0 Malignant neoplasm of upper gum

    2. C03.1 Malignant neoplasm of lower gum

    3. C03.9 Malignant neoplasm of gum, 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.