C71 Malignant neoplasm of brain

The ICD-10-CM code for Malignant neoplasm of brain is C71 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Chapter

2: Neoplasms (C00-D49)

Section

C69-C72: Malignant neoplasms of eye, brain and other parts of central nervous system (C69-C72)

Category C71

11 codes (10 billable)

FY2026 Status

Stable since FY2024

Official Coding Guidelines

Tx of primary site (TOC entry)

a. Admission/Encounter for treatment of primary site ............................................................. 33

Tx of secondary site (TOC entry)

b. Admission/Encounter for treatment of secondary site .......................................................... 33

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool

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Reference C71 with the canonical source and edition:

C71 — Malignant neoplasm of brain. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/C71

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