C71 ICD-10-CM Code: Malignant neoplasm of brain
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.
Official Registry Overview & Definition
Malignant neoplasm of brain is a non-billable ICD-10-CM category code (C71). A more specific billable subcode must be selected for claims submission.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for C71 in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- malignant neoplasm of cranial nerves (C72.2-C72.5)
- retrobulbar malignant neoplasm (C69.6-)
Frequently Asked Questions (FAQ) & Clinical Guidance
Can C71 be billed directly?
No. C71 (Malignant neoplasm of brain) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to C71 in its code family, with their registry titles.
- C71.0 — Malignant neoplasm of cerebrum, except lobes and ventricles
- C71.1 — Malignant neoplasm of frontal lobe
- C71.2 — Malignant neoplasm of temporal lobe
- C71.3 — Malignant neoplasm of parietal lobe
- C71.4 — Malignant neoplasm of occipital lobe
- C71.5 — Malignant neoplasm of cerebral ventricle
- C71.6 — Malignant neoplasm of cerebellum
- C71.7 — Malignant neoplasm of brain stem
- C71.8 — Malignant neoplasm of overlapping sites of brain
- C71.9 — Malignant neoplasm of brain, unspecified