ICD-10 Code H80.80 – Other otosclerosis, unspecified ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H80.80 – Other otosclerosis, unspecified ear
What it is
This code identifies otosclerosis affecting the middle ear, but the record does not specify which ear is involved. Use it when documentation supports otosclerosis and the laterality is not stated or cannot be confirmed.
Clinical signs
Clinical features vary; refer to documentation. Typical findings may include progressive conductive hearing loss, tinnitus, or a normal tympanic membrane with abnormal hearing test results suggesting stapes fixation.
When to use this code
Use H80.80 when the provider documents other otosclerosis and does not identify the right or left ear. It may also fit when the note confirms otosclerosis but laterality is missing in the assessment, operative note, or audiology report. Check documentation before assigning a more specific code.
Do not use for
Do not use this code if the record specifies right ear, left ear, or bilateral otosclerosis. Do not use it for hearing loss without documented otosclerosis.
Coding tip
If laterality is absent, query the provider before defaulting to an unspecified ear code.