ICD-10-CM FY2027 diagnosis code

C79.31: Secondary malignant neoplasm of brain

Billable codeValid for dates of service October 1, 2026 to September 30, 2027

C79.31 is a billable ICD-10-CM diagnosis code for secondary malignant neoplasm of brain. It is specific enough to use on an insurance claim, a superbill or a Good Faith Estimate.

Other codes in C79.3 Secondary malignant neoplasm of brain and cerebral meninges

C79.31 questions

Is C79.31 a billable code?

Yes. C79.31 is a billable ICD-10-CM code and can be used on claims and superbills for dates of service from October 1, 2026 to September 30, 2027.

What does C79.31 mean?

C79.31 is the ICD-10-CM code for Secondary malignant neoplasm of brain. It is in chapter 2, Neoplasms (C00-D49).

Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.