Diffuse otitis externa, right ear

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

Apply this code when documentation clearly indicates a diagnosis of diffuse otitis externa specifically in the right ear. Supporting documentation should include physician notes detailing the location and nature of the infection, such as "right ear diffuse otitis externa" or "swimmer's ear, right."

• Ensure laterality is explicitly documented as "right ear" to support this specific code.
• Differentiate from localized otitis externa (e.g., furuncle) which has different codes.
• Consider an additional code for the infectious agent (e.g., B95-B97) if identified and documented.