Other acquired stenosis of external ear canal, bilateral

This code signifies a narrowing of the external auditory canal in both ears that developed after birth, not due to a congenital anomaly. This acquired stenosis can result from various causes, impeding sound transmission and potentially leading to hearing loss or recurrent infections.

Use this code when documentation clearly indicates bilateral, non-congenital narrowing of the external ear canal. This often follows trauma, inflammation, chronic infection, or surgical intervention affecting both ears. The physician's notes should specify the acquired nature and bilateral involvement.

• Ensure the documentation explicitly states "bilateral" involvement; otherwise, a unilateral code (H61.391 or H61.392) or unspecified (H61.399) would be more appropriate.
• Distinguish carefully between acquired stenosis and congenital stenosis (Q16.2), as the etiologies and coding differ significantly.
• Look for underlying causes documented, such as otitis externa, trauma, or previous surgery, which may require additional codes.