D33.0 vs D33.1
D33.0 (Benign neoplasm of brain, supratentorial) compared with D33.1 (Benign neoplasm of brain, infratentorial), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. D33.0 carries an Excludes1 note covering D33.1: “benign neoplasm of fourth ventricle (D33.1)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| D33.0Benign neoplasm of brain, supratentorial | D33.1Benign neoplasm of brain, infratentorial | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | C00-D49 — Neoplasms (C00-D49) | C00-D49 — Neoplasms (C00-D49) |
| Definition | Benign neoplasm of brain, supratentorial is a billable ICD-10-CM diagnosis code (D33.0). | Benign neoplasm of brain, infratentorial is a billable ICD-10-CM diagnosis code (D33.1). |
| Includes | Benign neoplasm of cerebral ventricle Benign neoplasm of cerebrum Benign neoplasm of frontal lobe Benign neoplasm of occipital lobe | Benign neoplasm of brain stem Benign neoplasm of cerebellum Benign neoplasm of fourth ventricle |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources