ICD-10-CM 2027 diagnosis code
H90.A11Conductive hearing loss, unilateral, right ear with restricted hearing on the contralateral side
H90.A11 is a valid, billable ICD-10-CM code for conductive hearing loss, unilateral, right ear with restricted hearing on the contralateral side. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Condctv hear loss, uni, r ear with rstrcd hear cntra side
Code last changed in FY2017 (effective October 1, 2016). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About H90.A11
H90.A11 is the ICD-10-CM diagnosis code for conductive hearing loss, unilateral, right ear with restricted hearing on the contralateral side. It belongs to category H90 (conductive and sensorineural hearing loss), 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 H90.A1 (conductive hearing loss, unilateral, with restricted hearing on the contralateral side), H90.A11 is specifically for conductive hearing loss, unilateral, right ear with restricted hearing on the contralateral side. Related codes cover left ear with restricted hearing on the contralateral side (H90.A12).
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 was added in FY2017, effective October 1, 2016.
Before ICD-10, this condition was coded in ICD-9-CM as 389.05 (conductive hearing loss, unilateral).
Notes that apply from higher levels
Instructions written at a parent level also apply to H90.A11.
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 →- 389.05Conductive hearing loss, unilateralapproximate
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
- FY2017 (effective 10/1/2016): Added
- No changes since FY2017.
Common questions about H90.A11
Is H90.A11 billable?
- Yes. H90.A11 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can H90.A11 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict H90.A11 as a principal diagnosis.
Is H90.A11 a CC or MCC?
- No. H90.A11 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does H90.A11 group to?
- H90.A11 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 H90.A11?
- The CMS General Equivalence Mappings map H90.A11 to ICD-9-CM 389.05.