C00Header code — not billable
Malignant neoplasm of lip
- Chapter
- 2. Neoplasms
- Category
- C00
- Effective date
- October 1, 2026
Related codes in category C00
C00.0Malignant neoplasm of external upper lipYesC00.1Malignant neoplasm of external lower lipYesC00.2Malignant neoplasm of external lip, unspecifiedYesC00.3Malignant neoplasm of upper lip, inner aspectYesC00.4Malignant neoplasm of lower lip, inner aspectYesC00.5Malignant neoplasm of lip, unspecified, inner aspectYesC00.6Malignant neoplasm of commissure of lip, unspecifiedYesC00.8Malignant neoplasm of overlapping sites of lipYesC00.9Malignant neoplasm of lip, unspecifiedYes
Frequently asked questions
What is ICD-10 code C00?
C00 is an ICD-10-CM diagnosis code for Malignant neoplasm of lip.
Is C00 a billable code?
No. C00 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is C00 in?
C00 falls under Chapter 2: Neoplasms.
When did C00 become effective?
C00 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to C00?
C00 belongs to category C00, which includes 9 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.