 
| ICD-10-CM-2023 > C00-D49 > C00-C14 > C03 | 
| C00-C14 | Malignant neoplasms of lip, oral cavity and pharynx | |
| C03 | Malignant neoplasm of gum | |
| Incl.: | malignant neoplasm of alveolar (ridge) mucosa malignant neoplasm of gingiva | |
| Use add'l | code to identify: alcohol abuse and dependence (F10.-) history of tobacco dependence (Z87.891) tobacco dependence (F17.-) tobacco use (Z72.0) | |
| Excl2.: | malignant odontogenic neoplasms (C41.0-C41.1) | |
| C03.0 | Malignant neoplasm of upper gum | |
| C03.1 | Malignant neoplasm of lower gum | |
| C03.9 | Malignant neoplasm of gum, unspecified | |
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