Swimmer's ear, unspecified ear

This code signifies an unspecified inflammatory condition of the external auditory canal, commonly known as otitis externa, that is associated with water exposure. It indicates an infection or irritation of the outer ear canal, without specifying laterality.

Use this code when documentation clearly states "swimmer's ear" but does not specify whether it affects the left or right ear. This diagnosis is typically supported by a history of water exposure, ear pain, itching, and discharge, without a definitive laterality noted by the provider.

• Avoid using this code if the laterality (left or right ear) is documented; instead, choose the more specific code.
• Ensure the documentation explicitly links the otitis externa to water exposure or uses the term "swimmer's ear."
• Do not confuse with other forms of otitis externa (e.g., fungal, bacterial) if the etiology is known and not water-related.