ICD-10 Code H61.399 – Other acquired stenosis of external ear canal, unspecified ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H61.399 – Other acquired stenosis of external ear canal, unspecified ear
What it is
This code identifies an acquired narrowing of the external ear canal when the affected ear is not specified. It reflects a noncongenital stenosis that can limit the normal ear canal opening.
Clinical signs
Clinical features vary; refer to documentation. Common notes may include a narrowed canal on examination, reduced visibility of the tympanic membrane, or symptoms such as conductive hearing difficulty.
When to use this code
Use H61.399 when the record documents an acquired stenosis of the external ear canal but does not identify the side. Apply it for office, ENT, or procedural notes that clearly describe canal narrowing without laterality. If the provider names the ear, use the laterality-specific code instead.
Do not use for
Do not use this code for congenital ear canal narrowing or for temporary swelling, wax, or debris causing obstruction. Check documentation when the note describes another ear condition rather than true acquired stenosis.
Coding tip
Verify that “acquired” and “unspecified ear” are both documented before assigning H61.399.