ICD-10-CM 2027 diagnosis code
H90.2Conductive hearing loss, unspecified
H90.2 is a valid, billable ICD-10-CM code for conductive hearing loss, unspecified. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
Looking up by condition? See ICD-10 code for Conductive deafness.
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 H90.2
H90.2 is the ICD-10-CM diagnosis code for conductive hearing loss, unspecified. 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, choose H90.2 (Conductive hearing loss, unspecified) only when documentation doesn't support a more specific option: conductive hearing loss, bilateral (H90.0), conductive hearing loss, unilateral with unrestricted hearing on the contralateral side (H90.1), sensorineural hearing loss, bilateral (H90.3), sensorineural hearing loss, unilateral with unrestricted hearing on the contralateral side (H90.4), unspecified sensorineural hearing loss (H90.5), mixed conductive and sensorineural hearing loss, bilateral (H90.6), mixed conductive and sensorineural hearing loss, unilateral with unrestricted hearing on the contralateral side (H90.7), mixed conductive and sensorineural hearing loss, unspecified (H90.8) and 1 more.
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 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 389.00 (conductive hearing loss, unspecified).
Coding notes
- Conductive deafness NOS
Notes that apply from higher levels
Instructions written at a parent level also apply to H90.2.
Broader instructions also apply from Chapter 8: Diseases of the ear and mastoid process.
Alphabetic index entries
2 entriesTerms in the official ICD-10-CM index that lead to H90.2.
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 →- 389.00Conductive hearing loss, unspecifiedapproximate
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 H90.2
Is H90.2 billable?
- Yes. H90.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can H90.2 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict H90.2 as a principal diagnosis.
Is H90.2 a CC or MCC?
- No. H90.2 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does H90.2 group to?
- H90.2 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 H90.2?
- The CMS General Equivalence Mappings map H90.2 to ICD-9-CM 389.00.