ICD-10-CM · Chapter 2 · C00-D49
C04 Malignant neoplasm of floor of mouth
4 subcodes
Block: Malignant neoplasms of lip, oral cavity and pharynx (C00-C14)
Use Additional Code
- code to identify:
- alcohol abuse and dependence (F10.-)
- history of tobacco dependence (Z87.891)
- tobacco dependence (F17.-)
- tobacco use (Z72.0)
Subcodes
Each subcode links to a detail page with full clinical annotations.
| Code | Description | Billable |
| C04..0 | Malignant neoplasm of anterior floor of mouth | Yes |
| C04..1 | Malignant neoplasm of lateral floor of mouth | Yes |
| C04..8 | Malignant neoplasm of overlapping sites of floor of mouth | Yes |
| C04..9 | Malignant neoplasm of floor of mouth, unspecified | Yes |
Last reviewed: September 2026