ICD-10-CM 2027 diagnosis code
H94.02Acoustic neuritis in infectious and parasitic diseases classified elsewhere, left ear
H94.02 is a valid, billable ICD-10-CM code for acoustic neuritis in infectious and parasitic diseases classified elsewhere, left ear. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Acustc neuritis in infec/parastc dis classd elswhr, left ear
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About H94.02
H94.02 is the ICD-10-CM diagnosis code for acoustic neuritis in infectious and parasitic diseases classified elsewhere, left ear. It belongs to category H94 (other disorders of ear in diseases classified elsewhere), block H90-H94 (other disorders of ear) and chapter 8 (diseases of the ear and mastoid process). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within H94.0 (acoustic neuritis in infectious and parasitic diseases classified elsewhere), H94.02 is specifically for acoustic neuritis in infectious and parasitic diseases classified elsewhere, left ear. Related codes cover unspecified ear (H94.00), right ear (H94.01) and bilateral (H94.03).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 154 (Other Ear, Nose, Mouth and Throat Diagnoses with MCC, relative weight 1.5921), DRG 155 (Other Ear, Nose, Mouth and Throat Diagnoses with CC, relative weight 0.9322) and DRG 156 (Other Ear, Nose, Mouth and Throat Diagnoses without CC/MCC, relative weight 0.6659), in MDC 03 (Diseases and Disorders of the Ear, Nose, Mouth and Throat), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It is a manifestation code, so it describes the effect of an underlying disease and can't be the principal diagnosis. Code the underlying condition first.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Before ICD-10, this condition was coded in ICD-9-CM as 388.5 (disorders of acoustic nerve).
Notes that apply from higher levels
Instructions written at a parent level also apply to H94.02.
Broader instructions also apply from Chapter 8: Diseases of the ear and mastoid process.
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 03 · Diseases and Disorders of the Ear, Nose, Mouth and Throat
ICD-9-CM equivalent
Converter →- 388.5Disorders of acoustic nerveapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about H94.02
Is H94.02 billable?
- Yes. H94.02 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can H94.02 be used as a principal diagnosis?
- No. It is a manifestation code, so it describes the effect of an underlying disease and can't be the principal diagnosis. Code the underlying condition first.
Is H94.02 a CC or MCC?
- No. H94.02 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does H94.02 group to?
- H94.02 is used in the MS-DRG v44.0 logic for MS-DRG 154 (Other Ear, Nose, Mouth and Throat Diagnoses with MCC), MS-DRG 155 (Other Ear, Nose, Mouth and Throat Diagnoses with CC) and MS-DRG 156 (Other Ear, Nose, Mouth and Throat Diagnoses without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.
What is the ICD-9 code for H94.02?
- The CMS General Equivalence Mappings map H94.02 to ICD-9-CM 388.5.