Malignant neoplasm of gum

**Includes:** - malignant neoplasm of alveolar (ridge) mucosa - malignant neoplasm of gingiva

**Excludes2:** - malignant odontogenic neoplasms (C41.0-C41.1)

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