ICD-10 Code H80.8 – Other otosclerosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H80.8 – Other otosclerosis
What it is
H80.8 identifies otosclerosis that does not fit the more specific bilateral, unilateral, or unspecified categories. It refers to abnormal bone remodeling in the otic capsule that can affect hearing.
Clinical signs
Typical findings include progressive conductive hearing loss, sometimes with tinnitus. Clinical features vary; refer to documentation, especially when audiology or otologic exam findings support otosclerosis.
When to use this code
Use H80.8 when the provider documents otosclerosis but specifies a form not captured by another H80 code. Apply it when the record clearly indicates “other” otosclerosis rather than bilateral, unilateral, or unspecified disease.
Check documentation if laterality or subtype is unclear. Do not infer this code from hearing loss alone; the diagnosis must be documented by the clinician.
Do not use for
Do not use H80.8 for otosclerosis with a more specific laterality code or for hearing loss without documented otosclerosis. Check documentation if the chart only says suspected otosclerosis.
Coding tip
Match the code to the exact provider wording, and confirm that “other” otosclerosis is documented before assigning H80.8.