Diffuse otitis externa, bilateral

This code signifies a widespread inflammation or infection of the external auditory canal affecting both ears. It typically involves the skin and subcutaneous tissue of the ear canal, often presenting with pain, itching, discharge, and hearing impairment.

Assign this code when documentation clearly indicates a diagnosis of diffuse otitis externa impacting both the left and right ears. Supporting documentation should specify the bilateral nature of the condition and the diffuse involvement of the external ear canal.

• Ensure the documentation explicitly states "diffuse" and "bilateral" to support this specific code.
• Differentiate from localized otitis externa (e.g., furunculosis) or otitis media.
• Code any associated infectious agents (e.g., bacterial, fungal) as additional diagnoses if documented.