Other and unspecified hearing loss (H91) ICD-10-CM
The H91 code range covers other and unspecified hearing loss with 28 ICD-10-CM diagnosis codes. 21 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Codes in the H91 Range 28 codes · 21 billable
- H91 Other and unspecified hearing lossNon-billable
- H91.0 Ototoxic hearing lossNon-billable
- H91.01 Ototoxic hearing loss, right ear
- H91.02 Ototoxic hearing loss, left ear
- H91.03 Ototoxic hearing loss, bilateral
- H91.09 Ototoxic hearing loss, unspecified ear
- H91.1 PresbycusisNon-billable
- H91.10 Presbycusis, unspecified ear
- H91.11 Presbycusis, right ear
- H91.12 Presbycusis, left ear
- H91.13 Presbycusis, bilateral
- H91.2 Sudden idiopathic hearing lossNon-billable
- H91.20 Sudden idiopathic hearing loss, unspecified ear
- H91.21 Sudden idiopathic hearing loss, right ear
- H91.22 Sudden idiopathic hearing loss, left ear
- H91.23 Sudden idiopathic hearing loss, bilateral
- H91.3 Deaf nonspeaking, not elsewhere classified
- H91.8 Other specified hearing lossNon-billable
- H91.8X Other specified hearing lossNon-billable
- H91.8X1 Other specified hearing loss, right ear
- H91.8X2 Other specified hearing loss, left ear
- H91.8X3 Other specified hearing loss, bilateral
- H91.8X9 Other specified hearing loss, unspecified ear
- H91.9 Unspecified hearing lossNon-billable
- H91.90 Unspecified hearing loss, unspecified ear
- H91.91 Unspecified hearing loss, right ear
- H91.92 Unspecified hearing loss, left ear
- H91.93 Unspecified hearing loss, bilateral
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the H91 range.
Deafness
A general term for the complete loss of the ability to hear from both ears.
Presbycusis
Gradual bilateral hearing loss associated with aging that is due to progressive degeneration of cochlear structures and central auditory pathways. Hearing loss usually begins with the high frequencies then progresses to sounds of middle and low frequencies.
About the H91 Code Range
Hearing loss in this category includes named forms, deaf nonspeaking, other specified hearing loss, and hearing loss without a specified type.
H91.0 identifies ototoxic hearing loss. H91.1 identifies presbycusis, and H91.2 identifies sudden idiopathic hearing loss. H91.3 identifies deaf nonspeaking. H91.8 is for other specified hearing loss, while H91.9 leaves the type unspecified. Most of these groups divide further by right ear, left ear, both ears, or unspecified ear.
Questions About This Page
How many billable codes are in the H91 range?
Of the 28 codes in this range, 21 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the H91 range classify?
The range classifies other and unspecified hearing loss. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
