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C01 — Malignant neoplasm of base of tongue

Part of Chapter 2: Neoplasms , block Malignant neoplasms of lip, oral cavity and pharynx (C00-C14) .

Official Notes

Inclusion Terms

Malignant neoplasm of dorsal surface of base of tongue

Inclusion Terms

Malignant neoplasm of fixed part of tongue NOS

Inclusion Terms

Malignant neoplasm of posterior third of tongue

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code to identify:

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alcohol abuse and dependence ( F10 .-)

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history of tobacco dependence ( Z87.891 )

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tobacco dependence ( F17 .-)

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tobacco use ( Z72.0 )

Child Codes

C01 has no child codes in the FY 2027 release -- it is used on its own.

Referenced By

Official notes on these codes cite C01.

FY 2027 effective October 1, 2026 · CDC NCHS and CMS