D33 ICD-10-CM Code: Benign neoplasm of brain and other parts of central nervous system
D33 is not a CMS-HCC payment code. MEAT criteria · RAF Calculator · HCC Buddy coding tools
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FY 2026 Apr update / Neoplasms (C00-D49) / Benign neoplasms, except benign neuroendocrine tumors (D10-D36)
D33
Header CodeICD-10-CMOfficial ICD-10-CMCodebook guidanceBenign neoplasm of brain and other parts of central nervous system
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
N/A—
Not mapped
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
OfficialNo inclusion terms are included in this display for D33. Check the code and parent instructions in the Code Book.
Excludes 2
OfficialNo Excludes 2 notes are included in this display for D33. Check the code and parent instructions in the Code Book.
Related Codes
Includes
OfficialNo Includes notes are included in this display for D33. Check the code and parent instructions in the Code Book.
Excludes 1
Official- 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-)
Code First
OfficialNo Code First sequencing instructions are included in this display for D33. Check the code and parent instructions in the Code Book.
Use Additional
OfficialNo Use Additional Code instructions are included in this display for D33. Check the code and parent instructions in the Code Book.
Code Also
OfficialNo Code Also instructions are included in this display for D33. Check the code and parent instructions in the Code Book.
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
- Code
- D33
- Description
- Benign neoplasm of brain and other parts of central nervous system
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF reference coefficient
- —
- Billable
- No
- Payment year
- 2026
Coder workflow notes
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What This Code Means
D33 is the ICD-10-CM diagnosis code for benign neoplasm of brain and other parts of central nervous system. D33 sits in the ICD-10-CM chapter for neoplasms (c00-d49), within the section covering benign neoplasms, except benign neuroendocrine tumors (d10-d36).
Header codes like D33 cannot be reported on claims directly; they organize child codes that share clinical context. Coders should select the billable child code that matches the documented presentation and then verify its current source-backed HCC mapping. Do not infer a child code or risk adjustment value from the header alone.
HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for D33 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.