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C06

Non-billable

Malignant neoplasm of other and unspecified parts of mouth

C06 is the ICD-10-CM code for Malignant neoplasm of other and unspecified parts of mouth. It is a non-billable category code — use a more specific child code such as C06.0 for billing.

Status
Header (non-billable)
Chapter
C00-D49
Subcodes
5
Edition
FY2026

C00-D49 Neoplasms

Use additional code

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

Frequently asked questions

What is ICD-10 code C06?
C06 is the ICD-10-CM code for "Malignant neoplasm of other and unspecified parts of mouth". It falls under C00-D49 Neoplasms.
Is C06 a billable code?
No — C06 is a non-billable header code. Use a more specific child code (such as C06.0) for billing.
What are the subcodes of C06?
C06 has 5 more specific child codes, including C06.0, C06.1, C06.2.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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