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  3. Ch. H60-H95
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  5. Category H80
Category H80

Otosclerosis

Clinical Classification Guidelines

Specific Diagnosis Codes

Otosclerosis involving oval window, nonobliterative
H80.0
Otosclerosis involving oval window, nonobliterative, unspecified ear
H80.00
Otosclerosis involving oval window, nonobliterative, right ear
H80.01
Otosclerosis involving oval window, nonobliterative, left ear
H80.02
Otosclerosis involving oval window, nonobliterative, bilateral
H80.03
Otosclerosis involving oval window, obliterative
H80.1
Otosclerosis involving oval window, obliterative, unspecified ear
H80.10
Otosclerosis involving oval window, obliterative, right ear
H80.11
Otosclerosis involving oval window, obliterative, left ear
H80.12
Otosclerosis involving oval window, obliterative, bilateral
H80.13
Cochlear otosclerosis
H80.2
Cochlear otosclerosis, unspecified ear
H80.20
Cochlear otosclerosis, right ear
H80.21
Cochlear otosclerosis, left ear
H80.22
Cochlear otosclerosis, bilateral
H80.23
Other otosclerosis
H80.8
Other otosclerosis, unspecified ear
H80.80
Other otosclerosis, right ear
H80.81
Other otosclerosis, left ear
H80.82
Other otosclerosis, bilateral
H80.83
Unspecified otosclerosis
H80.9
Unspecified otosclerosis, unspecified ear
H80.90
Unspecified otosclerosis, right ear
H80.91
Unspecified otosclerosis, left ear
H80.92
Unspecified otosclerosis, bilateral
H80.93
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Data updated for October 2025 release.

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