C03 — Malignant neoplasm of gum
Is C03 billable?
No — C03 is a non-billable header code. C03 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 3 billable codes beneath C03.
Billable codes under this header
C03 at a glance
| Code | C03 |
|---|---|
| Description | Malignant neoplasm of gum |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Use additional code
Report an additional code alongside C03 to fully describe the condition. C03 is sequenced first.
Excludes2 — not included here
The conditions below are not part of C03, but a patient may have both at the same time. When documentation supports it, C03 and the excluded code may both be reported.
- malignant odontogenic neoplasms (C41.0-C41.1)
Includes
Conditions classified to C03.
- malignant neoplasm of alveolar (ridge) mucosa
- malignant neoplasm of gingiva
What codes fall under C03? (3)
How long has C03 existed?
C03 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.