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  3. Ch. H60-H95
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  5. Category H91
Category H91

Other and unspecified hearing loss

Clinical Classification Guidelines

Specific Diagnosis Codes

Ototoxic hearing loss
H91.0
Ototoxic hearing loss, right ear
H91.01
Ototoxic hearing loss, left ear
H91.02
Ototoxic hearing loss, bilateral
H91.03
Ototoxic hearing loss, unspecified ear
H91.09
Presbycusis
H91.1
Presbycusis, unspecified ear
H91.10
Presbycusis, right ear
H91.11
Presbycusis, left ear
H91.12
Presbycusis, bilateral
H91.13
Sudden idiopathic hearing loss
H91.2
Sudden idiopathic hearing loss, unspecified ear
H91.20
Sudden idiopathic hearing loss, right ear
H91.21
Sudden idiopathic hearing loss, left ear
H91.22
Sudden idiopathic hearing loss, bilateral
H91.23
Deaf nonspeaking, not elsewhere classified
H91.3
Other specified hearing loss
H91.8
Other specified hearing loss
H91.8X
Other specified hearing loss, right ear
H91.8X1
Other specified hearing loss, left ear
H91.8X2
Other specified hearing loss, bilateral
H91.8X3
Other specified hearing loss, unspecified ear
H91.8X9
Unspecified hearing loss
H91.9
Unspecified hearing loss, unspecified ear
H91.90
Unspecified hearing loss, right ear
H91.91
Unspecified hearing loss, left ear
H91.92
Unspecified hearing loss, bilateral
H91.93
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Data updated for October 2025 release.

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