C06.8 – Malignant neoplasm of overlapping sites of other and unspecified parts of mouth

ICD-10-CM 2027 diagnosis code · Malignant neoplasms of lip, oral cavity and pharynx

Non-billable header

ICD-10-CM code C06.8
Code
C06.8 (claims format: C068)
Description
Malignant neoplasm of overlapping sites of other and unspecified parts of mouth
Short description
Malignant neoplasm of ovrlp sites of and unsp parts of mouth
Billable
No – use a more specific code below
Valid for
Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter
2. Neoplasms (C00-D49)
Block
C00-C14 Malignant neoplasms of lip, oral cavity and pharynx
Parent codes
C06

Billable codes under C06.8

C06.8 is a header code and cannot be used on claims. Choose the most specific code:

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

C06 – Malignant neoplasm of other and unspecified parts of mouth

Use additional code:
  • code to identify:
  • alcohol abuse and dependence (F10.-)
  • history of tobacco dependence (Z87.891)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)

Related codes in C06

Frequently asked questions

What is ICD-10 code C06.8?

C06.8 is the ICD-10-CM code for malignant neoplasm of overlapping sites of other and unspecified parts of mouth, in the block C00-C14 (Malignant neoplasms of lip, oral cavity and pharynx).

Is C06.8 a billable code?

No. C06.8 is a header code with more specific child codes; report one of the billable codes listed above.

What category does C06.8 belong to?

It belongs to category C06 – Malignant neoplasm of other and unspecified parts of mouth.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.