C06.9Billable
Malignant neoplasm of mouth, unspecified
- Chapter
- 2. Neoplasms
- Category
- C06
- Effective date
- October 1, 2026
Related codes in category C06
C06Malignant neoplasm of other and unspecified parts of mouthC06.0Malignant neoplasm of cheek mucosaYesC06.1Malignant neoplasm of vestibule of mouthYesC06.2Malignant neoplasm of retromolar areaYesC06.8Malignant neoplasm of ovrlp sites of and unsp parts of mouthC06.80Malignant neoplasm of ovrlp sites of unsp parts of mouthYesC06.89Malignant neoplasm of overlapping sites of oth prt mouthYes
Frequently asked questions
What is ICD-10 code C06.9?
C06.9 is an ICD-10-CM diagnosis code for Malignant neoplasm of mouth, unspecified.
Is C06.9 a billable code?
Yes. C06.9 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is C06.9 in?
C06.9 falls under Chapter 2: Neoplasms.
When did C06.9 become effective?
C06.9 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to C06.9?
C06.9 belongs to category C06, which includes 7 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.