Acute chemical otitis externa, unspecified ear

This code signifies an acute inflammation of the external ear canal caused by exposure to an irritant chemical substance. The condition presents with sudden onset of symptoms such as pain, itching, discharge, and redness, and the specific chemical agent is not identified. The affected ear is also not specified in this particular code.

Apply this code when documentation clearly indicates an acute otitis externa resulting from chemical exposure, and the medical record does not specify the laterality (left or right ear) or the exact chemical agent. This code is appropriate when the provider has diagnosed chemical otitis externa but lacks further detail regarding the specific ear or causative substance.

• Ensure documentation specifies "acute" and "chemical" etiology; otherwise, consider other otitis externa codes.
• Avoid using this code if the laterality (right or left ear) is documented; instead, use the more specific H60.521 or H60.522.
• If the chemical agent is identified, consider an external cause code (V00-Y99) in addition to this diagnosis.