2027 ICD-10-CM Diagnosis Code H94.02Acoustic neuritis in infectious and parasitic diseases classified elsewhere, left ear

ICD-10-CM Codes›H60–H95›H90-H94›H94

ICD-10-CM H94.02
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

H94.02 is a billable ICD-10-CM diagnosis code for acoustic neuritis in infectious and parasitic diseases classified elsewhere, left ear. 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. The code is a manifestation code that cannot be reported as the principal diagnosis. 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
H94.02
Billable Status
Yes — Valid for Submission
Code Describes
Acoustic neuritis in infectious and parasitic diseases classified elsewhere, left ear
Short Description
Acustc neuritis in infec/parastc dis classd elswhr, left ear
Parent Code
H94.0
Acoustic neuritis in infectious and parasitic diseases classified elsewhere

Code Classification

ChapterH60–H95Diseases of the ear and mastoid process
SectionH90-H94Other disorders of ear
CategoryH94Other disorders of ear in diseases classified elsewhere
This CodeH94.02Acoustic neuritis in infectious and parasitic diseases classified elsewhere, left ear

Code EditsBilling

Medicare Code Editor checks that affect claim validity for H94.02.

Manifestation diagnoses
Manifestation codes describe the manifestation of an underlying disease, not the disease itself, and therefore should not be used as a principal diagnosis.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acoustic neuritis
  • Acoustic neuritis due to infectious disease
  • Left acoustic neuritis due to infectious disease

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to H94.02: its own notes plus those printed at H94.0 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 H94.0 Acoustic neuritis in infectious and parasitic diseases classified elsewhere applies to 4 codes
  • acoustic neuritis (in):
  • herpes zoster (B02.29)
  • syphilis (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)

Code First

The underlying condition named in the note is sequenced before this code.

From H94.0 Acoustic neuritis in infectious and parasitic diseases classified elsewhere applies to 4 codes
  • underlying disease, such as:
  • parasitic disease (B65-B89)

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.

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 No · outpatient No

Patient EducationClinical

Ear Disorders

An ear disorder is any condition that changes or harms the shape or structure of your ear. This can include abnormal ear shapes you're born with, injuries that change your ear's shape, and a growth on or in the ear.

The full article covers:

  • What is an ear disorder?
  • What causes ear disorders?
  • What are the symptoms of ear disorders?
  • How are ear disorders diagnosed?
  • How are ear disorders treated?
  • Can ear disorders be prevented?

Read the full article at MedlinePlus

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

Convert H94.02 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 H94.02Overview

Is H94.02 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report acoustic neuritis in infectious and parasitic diseases classified elsewhere, left ear on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does H94.02 group to?

On inpatient claims, acoustic neuritis in infectious and parasitic diseases classified elsewhere, left ear maps 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 H94.02 be a principal diagnosis?

No. This is a manifestation code: acoustic neuritis in infectious and parasitic diseases classified elsewhere, left ear describes the manifestation of an underlying disease rather than the disease itself, so the underlying condition is sequenced first.

Can H94.02 be reported with B02.29?

Not as a rule. The Excludes1 note at H94.0, which applies to H94.02, lists "herpes zoster (B02.29)". 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 coded first with H94.02?

The Code First note at H94.0, which applies to H94.02, reads: underlying disease, such as: parasitic disease (B65-B89). When one of these applies, it is sequenced before H94.02.