2027 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 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

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 2027 (October 1, 2026 through September 30, 2027) 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

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to H93.3X9: its own notes plus those printed at H93.3 and Chapter 8. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From H93.3 Disorders of acoustic nerve applies to 4 codes
  • acoustic neuroma (D33.3)
  • syphilitic acoustic neuritis (A52.15)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 8 (H60-H95) Diseases of the ear and mastoid process applies to 653 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Notes

General instructions on how these codes are used.

From Chapter 8 (H60-H95) Diseases of the ear and mastoid process applies to 653 codes
  • Use an external cause code following the code for the ear condition, if applicable, to identify the cause of the ear condition

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name H93.3X9, its category, or a range that includes it.

Excludes2 1

These codes carry an Excludes2 note naming H93.3X9: its condition is not part of those codes, and both may be reported when the patient has both.

  • G52 Disorders of other cranial nerves
    disorders of acoustic [8th] nerve (H93.3) names H93.3, which includes this code

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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About H93.3X9Overview

What is the ICD-10 code for disorders of unspecified acoustic nerve?

The ICD-10-CM code for disorders of unspecified acoustic nerve is H93.3X9 (sometimes written as H933X9). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

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, 2026 through September 30, 2027.

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 156, 155, 154, with relative weights from 0.6656 to 1.5916 depending on complications. Higher weights mean higher Medicare reimbursement.

Can H93.3X9 be reported with D33.3?

Not as a rule. The Excludes1 note at H93.3, which applies to H93.3X9, lists "acoustic neuroma (D33.3)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).

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.