2026 ICD-10-CM Diagnosis Code H93.3X9Disorders of unspecified acoustic nerve

ICD-10-CM Codes›H60–H95›H90-H94›H93

ICD-10-CM H93.3X9
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

H93.3X9 is a billable ICD-10-CM diagnosis code for disorders of unspecified acoustic nerve. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 154 through 156. Coders also document this condition as acoustic neuritis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified disorders of the ear.

Code Identity

ICD-10-CM Code
H93.3X9
Billable Status
Yes — Valid for Submission
Code Describes
Disorders of unspecified acoustic nerve
Short Description
Disorders of unspecified acoustic nerve
Same as the full description in the CMS dataset.
Parent Code
H93.3X
Disorders of acoustic nerve

Code Classification

ChapterH60–H95Diseases of the ear and mastoid process
SectionH90-H94Other disorders of ear
CategoryH93Other disorders of ear, not elsewhere classified
This CodeH93.3X9Disorders of unspecified acoustic nerve

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acoustic neuritis
  • Auditory neuropathy, optic atrophy syndrome
  • Cochlear nerve disorder
  • Compression of acoustic nerve
  • Cranial nerve compression
  • Degeneration of acoustic nerve
  • Disorder of acoustic nerve
  • Lesion of the acoustic nerve
  • Vestibular nerve disorder
  • Vestibulocochlear nerve palsy

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR EAR006
Other specified and unspecified disorders of the ear
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Hearing Disorders and Deafness

It's frustrating to be unable to hear well enough to enjoy talking with friends or family. Hearing disorders make it hard, but not impossible, to hear. They can often be helped. Deafness can keep you from hearing sound at all.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert H93.3X9 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
388.5 Acoustic nerve disorders
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About H93.3X9Overview

Is H93.3X9 (Disorders of acoustic nerve) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report disorders of unspecified acoustic nerve on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does H93.3X9 group to?

When disorders of unspecified acoustic nerve is the principal diagnosis on an inpatient stay, it groups to MS-DRG 154, 155, 156, with relative weights from 0.6911 to 1.5635 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of H93.3X9?

Under the General Equivalence Mappings, disorders of unspecified acoustic nerve converts to ICD-9-CM 388.5 (acoustic nerve disorders). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.