| C00 | Malignant neoplasm of lip | NON-BILLABLE CODE |
| C00.0 | Malignant neoplasm of external upper lip | BILLABLE CODE |
| C00.1 | Malignant neoplasm of external lower lip | BILLABLE CODE |
| C00.2 | Malignant neoplasm of external lip, unspecified | BILLABLE CODE |
| C00.3 | Malignant neoplasm of upper lip, inner aspect | BILLABLE CODE |
| C00.4 | Malignant neoplasm of lower lip, inner aspect | BILLABLE CODE |
| C00.5 | Malignant neoplasm of lip, unspecified, inner aspect | BILLABLE CODE |
| C00.6 | Malignant neoplasm of commissure of lip, unspecified | BILLABLE CODE |
| C00.8 | Malignant neoplasm of overlapping sites of lip | BILLABLE CODE |
