C71
ICD-10Non-billable categoryMalignant neoplasm of brain
Official ICD-10-CM descriptor (FY2026)
Malignant neoplasm of brain
C71 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- malignant neoplasm of cranial nerves (C72.2-C72.5)
- retrobulbar malignant neoplasm (C69.6-)
More specific codes under C71
- C71.0Malignant neoplasm of cerebrum, except lobes and ventricles
- C71.1Malignant neoplasm of frontal lobe
- C71.2Malignant neoplasm of temporal lobe
- C71.3Malignant neoplasm of parietal lobe
- C71.4Malignant neoplasm of occipital lobe
- C71.5Malignant neoplasm of cerebral ventricle
- C71.6Malignant neoplasm of cerebellum
- C71.7Malignant neoplasm of brain stem
- C71.8Malignant neoplasm of overlapping sites of brain
- C71.9Malignant neoplasm of brain, unspecified
Where this code sits
- Chapter
- 2. Neoplasms (C00-D49)
Krasyn AI Coder
Get code suggestions automatically as you type notes. Free for 50 analyses.
Install for Chrome — freeSource
ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.