ICD-10 Code H61.321 – Acquired stenosis of right external ear canal secondary to inflammation and infection (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H61.321 – Acquired stenosis of right external ear canal secondary to inflammation and infection
What it is
This code identifies narrowing of the right external ear canal that develops after inflammation or infection. It reflects an acquired change, not a congenital condition.
Clinical signs
Typical findings include a visibly narrowed right ear canal, possible debris retention, and reduced passage of sound. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record specifically states acquired stenosis of the right external ear canal caused by inflammation or infection. You may also use it when the clinician documents post-inflammatory narrowing with laterality clearly identified as right.
Check documentation if the note only describes otitis externa, ear canal swelling, or unspecified canal stenosis without a causal link. The diagnosis should support an acquired, right-sided condition.
Do not use for
Do not use this code for congenital ear canal narrowing or stenosis on the left side. Do not assign it when the cause is not documented as inflammation or infection.
Coding tip
Verify both laterality and the acquired inflammatory or infectious cause before coding H61.321.