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v1.0.0
ICD-10 Guide
DiagnosesVestibular Schwannoma

Vestibular Schwannoma

ICD-10 Coding for Vestibular Schwannoma(D33.3)

PRIMARY SPECIALTYNeurosurgery
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Vestibular Schwannoma?
Essential facts and insights about Vestibular Schwannoma

Key Clinical Considerations:

  • Hearing loss (unilateral or bilateral)
  • Tinnitus (ringing in the ears)
  • Balance disturbances or vertigo
  • Facial numbness or weakness

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient history including symptoms and duration
  • Results of imaging studies (MRI preferred)
  • Neurological examination findings
  • Assessment of hearing function

Coding Guidelines

Usage Guidelines & Examples

  • Ensure correct use of D33.2 for acoustic nerve schwannomas versus D33.3 for other cranial nerve tumors.
  • Common errors include misclassifying the tumor type or omitting relevant symptoms.

Code Exclusions

Important Exclusions

  • Malignant tumors of the cranial nerve (C72.4)
  • Other types of schwannomas not affecting the vestibular nerve.

Related ICD-10 Codes

Primary Codes
D33.3
Benign neoplasm of cranial nerve, unspecified
D33.2
Benign neoplasm of acoustic nerve
Ancillary Codes
H90.3
Differential Codes
C72.4

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Neurosurgery

Specialty Applications

  • Adults aged 30-60 years, though can occur in younger patients.
  • Neurosurgery clinics, ENT practices, and oncology centers.

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

  • Comprehensive clinical documentation
  • Accurate code selection based on clinical criteria
  • Proper exclusion considerations
  • Specialty-specific coding guidelines

Documentation

Documentation Templates

Billing Information

Billing Considerations

  • Ensure proper documentation for billing
  • Verify code specificity requirements
  • Check for any additional codes needed
  • Review payer-specific guidelines

Common Issues

  • Insufficient clinical documentation
  • Incorrect code selection
  • Missing supporting diagnoses
  • Timing and frequency documentation

Frequently Asked Questions

Documentation requirements?

Include detailed patient history, imaging results, and neurological assessments.

Billing considerations?

Ensure accurate coding to reflect the diagnosis and any associated procedures.