D33.1 BENIGN NEOPLASM OF BRAIN, INFRATENTORIAL

Code Information

Diagnosis Code: D33.1
Short Description: Benign neoplasm of brain, infratentorial
Long Description: Benign neoplasm of brain, infratentorial
Code Version: 2025 ICD-10-CM

The code D33.1 is VALID for claim submission

Code Classification

Neoplasms (C00–D49)
- Benign neoplasms, except benign neuroendocrine tumors (D10-D36)
  - Benign neoplasm of brain and other parts of central nervous system (D33)

Synonyms

Benign neoplasm of brain stem
Benign neoplasm of cerebellum
Benign neoplasm of infratentorial brain
Benign neoplasm of medulla oblongata
Benign neoplasm of pons
Benign neoplasm of spinal extradural space
Cerebellopontine angle meningioma
Cerebellopontine angle tumor
Neoplasm of extradural space

References to Index of Diseases and Injuries

The code D33.1 has the following ICD-10-CM references to the Index of Diseases and Injuries

Inclusion Terms:
- Benign neoplasm of brain stem
- Benign neoplasm of cerebellum
- Benign neoplasm of fourth ventricle

Crosswalk Information

ICD-10 Code		ICD-9 Code	ICD-9 Description
D33.1		225.0	Benign neoplasm brain

This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code	ICD-10 Description
D33	Benign neoplasm of brain and other parts of central nervous system
D33.0	Benign neoplasm of brain, supratentorial
D33.2	Benign neoplasm of brain, unspecified
D33.3	Benign neoplasm of cranial nerves
D33.4	Benign neoplasm of spinal cord
D33.7	Benign neoplasm of other specified parts of central nervous system
D33.9	Benign neoplasm of central nervous system, unspecified

This page was last updated on: 10/1/2025

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