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U.S. ICD-10-CM · April 2026

D33 ICD-10-CM Code: Benign neoplasm of brain and other parts of central nervous system

A clear reference for the official code description, hierarchy, and related coding information from the April 2026 U.S. release.

Code definition

Official description

D33

Benign neoplasm of brain and other parts of central nervous system

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where D33 sits

  1. 1

    Chapter 2

    Neoplasms (C00-D49)

  2. 2

    Section

    Benign neoplasms, except benign neuroendocrine tumors (D10-D36)

  3. 3

    Category D33

    Benign neoplasm of brain and other parts of central nervous system

  4. 4

    Code D33

    Benign neoplasm of brain and other parts of central nervous system

More specific choices

Codes under D33

D33 is a non-billable category. Choose the child code that best matches the documented diagnosis.

D33.0

Benign neoplasm of brain, supratentorial

D33.1

Benign neoplasm of brain, infratentorial

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

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for D33.

Code first

No “code first” instruction is listed for D33.

Use additional code

No “use additional code” instruction is listed for D33.

Excludes1

Conditions that should not be reported together with this code.

  • angioma (D18.0-)
  • benign neoplasm of meninges (D32.-)
  • benign neoplasm of peripheral nerves and autonomic nervous system (D36.1-)
  • hemangioma (D18.0-)
  • neurofibromatosis (Q85.0-)
  • retro-ocular benign neoplasm (D31.6-)

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for D33.

Transparency

Source and release

Data release

U.S. ICD-10-CM · April 2026

Effective date

Apr 1, 2026

Publisher

Vero Scribe Inc.

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code D33 mean?

D33 is the April 2026 U.S. ICD-10-CM code for “Benign neoplasm of brain and other parts of central nervous system.”

Is D33 a billable or specific ICD-10-CM code?

No. D33 has more specific child codes in the April 2026 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is D33 located in ICD-10-CM?

D33 is listed in Chapter 2, Neoplasms (C00-D49), within Benign neoplasms, except benign neuroendocrine tumors (D10-D36) (D10–D36), under category D33, Benign neoplasm of brain and other parts of central nervous system.

What coding notes are listed for D33?

No inclusion terms are listed for D33 in this reference record. No code-first instruction is listed. Excludes1 notes: angioma (D18.0-); benign neoplasm of meninges (D32.-); benign neoplasm of peripheral nerves and autonomic nervous system (D36.1-); hemangioma (D18.0-); neurofibromatosis (Q85.0-); retro-ocular benign neoplasm (D31.6-). No Excludes2 note is listed.

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