C03
Non-billableMalignant neoplasm of gum
C03 is the ICD-10-CM code for Malignant neoplasm of gum. It is a non-billable category code — use a more specific child code such as C03.0 for billing.
- Status
- Header (non-billable)
- Chapter
- C00-D49
- Subcodes
- 3
- Edition
- FY2026
C00-D49 Neoplasms
What this means — in plain language
MedlinePlus · NIHWhat is oral cancer? Oral cancer is cancer of the mouth. It is a type of head and neck cancer . Most oral cancers are squamous cell cancers . They begin in the flat cells that cover the surfaces of your mouth, tongue, and lips. The cancer cells may spread into deeper tissue as the cancer grows. Most oral cancers are related to tobacco use, heavy alcohol use, or an HPV infection . Who is more likely to develop oral…
Read more about Oral Cancer at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Includes
- •malignant neoplasm of alveolar (ridge) mucosa
- •malignant neoplasm of gingiva
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Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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