ICD-10-CM diagnosis code
H80.22 Cochlear otosclerosis, left ear
- Billable
- Yes, a complete code (FY2026)
- Category
- H80 Otosclerosis
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Other codes in H80
20 complete codes in this category.
- H80.10Otosclerosis involving oval window, obliterative, unspecified ear
- H80.11Otosclerosis involving oval window, obliterative, right ear
- H80.12Otosclerosis involving oval window, obliterative, left ear
- H80.13Otosclerosis involving oval window, obliterative, bilateral
- H80.20Cochlear otosclerosis, unspecified ear
- H80.21Cochlear otosclerosis, right ear
- H80.22Cochlear otosclerosis, left ear
- H80.23Cochlear otosclerosis, bilateral
- H80.80Other otosclerosis, unspecified ear
- H80.81Other otosclerosis, right ear
- H80.82Other otosclerosis, left ear
- H80.83Other otosclerosis, bilateral
Documentation tips
- Make sure the note supports every element of the title, “Cochlear otosclerosis, left ear”: each detail in it should be traceable to the history, examination or assessment.
- Code to the highest specificity the documentation supports. If a detail is missing from the note, add it to the note rather than choosing a less specific code by default.
- Check the Tabular List and official guidelines for instructional notes (“code first”, “use additional code”, Excludes1/Excludes2) that apply to H80.
The international WHO ICD-10 also has H80, with its inclusion and exclusion notes; titles and detail can differ from ICD-10-CM.
ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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