C06: Malignant neoplasm of other and unspecified parts of mouth
Codes under C06 (Malignant neoplasm of other and unspecified parts of mouth). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| C06.0 | Malignant neoplasm of cheek mucosa | ✓ |
| C06.0 | Malignant neoplasm of cheek mucosa | ✓ |
| C06.1 | Malignant neoplasm of vestibule of mouth | ✓ |
| C06.1 | Malignant neoplasm of vestibule of mouth | ✓ |
| C06.2 | Malignant neoplasm of retromolar area | ✓ |
| C06.2 | Malignant neoplasm of retromolar area | ✓ |
| C06.8 | Malignant neoplasm of overlapping sites of other and unspecified parts of mouth | — |
| C06.8 | Malignant neoplasm of overlapping sites of other and unspecified parts of mouth | — |
| C06.9 | Malignant neoplasm of mouth, unspecified | ✓ |
| C06.9 | Malignant neoplasm of mouth, unspecified | ✓ |
| C06.80 | Malignant neoplasm of overlapping sites of unspecified parts of mouth | ✓ |
| C06.80 | Malignant neoplasm of overlapping sites of unspecified parts of mouth | ✓ |
| C06.89 | Malignant neoplasm of overlapping sites of other parts of mouth | ✓ |
| C06.89 | Malignant neoplasm of overlapping sites of other parts of mouth | ✓ |
Frequently asked questions
What is ICD-10-CM code C06?
C06 is an ICD-10-CM category covering Malignant neoplasm of other and unspecified parts of mouth. It contains 14 more specific diagnosis codes, 12 of which are billable.
Is C06 a billable code?
No — C06 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example C06.0 — Malignant neoplasm of cheek mucosa). 12 of the 14 codes under C06 are billable.
What codes fall under C06?
C06 includes C06.0, C06.0, C06.1, C06.1, C06.2, plus 9 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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