ICD-10 Code H61.303 – Acquired stenosis of external ear canal, unspecified, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H61.303 – Acquired stenosis of external ear canal, unspecified, bilateral
What it is
This code identifies narrowing of both external ear canals that is acquired rather than present at birth. Use it when documentation states bilateral external auditory canal stenosis without a more specific cause.
Clinical signs
Typical findings include reduced ear canal diameter on examination and possible conductive hearing complaints. Clinical features vary; refer to documentation for laterality, severity, and any associated obstruction.
When to use this code
Use H61.303 when the record documents acquired stenosis affecting both ear canals and does not name a more specific diagnosis. It may appear in ENT notes, audiology referrals, or follow-up visits describing chronic canal narrowing. Check documentation if the cause is post-inflammatory, post-surgical, or otherwise specified.
Do not use for
Do not use this code for congenital ear canal narrowing or for unilateral stenosis. Also avoid it when the chart describes cerumen impaction, otitis externa, or another condition without confirmed acquired canal stenosis.
Coding tip
Confirm both acquired status and bilateral laterality in the note before assigning H61.303.