Otosclerosis
In Diseases of inner ear (H80-H83), chapter 8: Diseases of the Ear and Mastoid Process
20 billable codes under H80: none are a CC or MCC; none map to an HCC.
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Instructional notes
Includes: conditions that are coded here
- Otospongiosis
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
There are no chapter-specific rules for Chapter 8 yet, so the general rules in Section I.B apply.
All codes under H80
H80 can't be used on a claim. Pick a billable code below; grey headings group them.
- H80.0Otosclerosis involving oval window, nonobliterative
- H80.00Otosclerosis involving oval window, nonobliterative, unspecified ear
- H80.01Otosclerosis involving oval window, nonobliterative, right ear
- H80.02Otosclerosis involving oval window, nonobliterative, left ear
- H80.03Otosclerosis involving oval window, nonobliterative, bilateral
- H80.1Otosclerosis involving oval window, obliterative
- 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
- H80.2Cochlear otosclerosis
- H80.20Cochlear otosclerosis, unspecified ear
- H80.21Cochlear otosclerosis, right ear
- H80.22Cochlear otosclerosis, left ear
- H80.23Cochlear otosclerosis, bilateral
- H80.8Other otosclerosis
- H80.80Other otosclerosis, unspecified ear
- H80.81Other otosclerosis, right ear
- H80.82Other otosclerosis, left ear
- H80.83Other otosclerosis, bilateral
- H80.9Unspecified otosclerosis
- H80.90Unspecified otosclerosis, unspecified ear
- H80.91Unspecified otosclerosis, right ear
- H80.92Unspecified otosclerosis, left ear
- H80.93Unspecified otosclerosis, bilateral
H80 MS-DRGs
As the principal diagnosis, all 20 billable codes under H80 group to MS-DRG 154, 155, or 156 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Ear Disorders
An ear disorder is any condition that changes or harms the shape or structure of your ear. This can include abnormal ear shapes you're born with, injuries that change your ear's shape, and a growth on or in the ear.
Read more about ear disorders on MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.