C01

Billable

Malignant neoplasm of base of tongue

C01 is the ICD-10-CM code for Malignant neoplasm of base of tongue. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
C00-D49
Edition
FY2026

C00-D49 Neoplasms

Includes

  • Malignant neoplasm of dorsal surface of base of tongue
  • Malignant neoplasm of fixed part of tongue NOS
  • Malignant neoplasm of posterior third of tongue

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 C01?
C01 is the ICD-10-CM code for "Malignant neoplasm of base of tongue". It falls under C00-D49 Neoplasms.
Is C01 a billable code?
Yes — C01 is a billable, specific ICD-10-CM code valid for reimbursement.

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

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