C03 vs C41.0
C03 (Malignant neoplasm of gum) compared with C41.0 (Malignant neoplasm of bones of skull and face), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. C03 carries an Excludes2 note covering C41.0: “malignant odontogenic neoplasms (C41.0-C41.1)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| C03Malignant neoplasm of gum | C41.0Malignant neoplasm of bones of skull and face | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | C00-D49 — Neoplasms (C00-D49) | C00-D49 — Neoplasms (C00-D49) |
| Definition | Malignant neoplasm of gum is a non-billable ICD-10-CM category code (C03). | Malignant neoplasm of bones of skull and face is a billable ICD-10-CM diagnosis code (C41.0). |
| Includes | malignant neoplasm of alveolar (ridge) mucosa malignant neoplasm of gingiva | malignant neoplasm of cartilage (articular) (joint) malignant neoplasm of periosteum Malignant neoplasm of maxilla (superior) Malignant neoplasm of orbital bone |
| Use additional code | code to identify: alcohol abuse and dependence (F10.-) history of tobacco dependence (Z87.891) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources