ICD-10 Code H61.329 – Acquired stenosis of external ear canal secondary to inflammation and infection, unspecified ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H61.329 – Acquired stenosis of external ear canal secondary to inflammation and infection, unspecified ear
What it is
This code identifies narrowing of the external ear canal that develops after inflammation or infection. Use it when the record states acquired stenosis and does not specify the right or left ear.
Clinical signs
Typical findings include a narrowed ear canal on examination, with a history of chronic or prior ear inflammation or infection. Clinical features vary; refer to documentation.
When to use this code
Use H61.329 when the provider documents acquired stenosis of the external ear canal caused by inflammation or infection and the affected ear is not specified. It also fits follow-up visits when the condition remains active or is being evaluated. Check documentation if the cause or laterality is unclear.
Do not use for
Do not use this code for congenital ear canal narrowing or for stenosis from trauma, surgery, or other noninfectious causes. If the record names a specific ear, use the laterality-specific code instead.
Coding tip
Confirm both the acquired cause and the unspecified laterality before assigning H61.329.