Acq stenosis of ext ear canal sec to inflam and infct, bi

This code signifies a narrowing of both external ear canals that developed after birth, specifically caused by inflammation and/or infection. This acquired condition can lead to hearing impairment, recurrent otitis externa, and difficulty with ear hygiene.

Apply this code when documentation clearly indicates bilateral external auditory canal stenosis resulting from inflammatory processes (e.g., chronic otitis externa, eczema) or infectious etiologies (e.g., fungal infections, bacterial infections). The physician's notes should specify the acquired nature and the inflammatory/infectious cause.

• Ensure documentation specifies "bilateral" involvement; otherwise, use the appropriate unilateral code.
• Distinguish from congenital stenosis (Q16.1) or stenosis due to trauma (H61.31-).
• Code any underlying or causative infection/inflammation separately, if applicable and documented.