D33.3 Benign neoplasm of cranial nerves

The ICD-10-CM code for Benign neoplasm of cranial nerves is D33.3 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

2: Neoplasms (C00-D49)

Section

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

Category D33

8 codes (7 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to D33.3:

• Neuroma › acoustic (nerve)
• Neurilemmoma › acoustic (nerve)
• Neuroma › optic (nerve)

Inclusion Terms

• Benign neoplasm of olfactory bulb

U.S. Hospital Utilization

• An estimated 8,495 U.S. inpatient stays in 2023 included D33.3 among the documented diagnoses.
• 4,095 stays listed it as the principal diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

Tx of primary site (TOC entry)

a. Admission/Encounter for treatment of primary site ............................................................. 33

Tx of secondary site (TOC entry)

b. Admission/Encounter for treatment of secondary site .......................................................... 33

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)

Cite This Page

Reference D33.3 with the canonical source and edition:

D33.3 — Benign neoplasm of cranial nerves. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/D33.3

Canonical URL: https://icd10codingpro.com/codes/D33.3