Exposure keratoconjunctivitis, bilateral

This code signifies inflammation of both the cornea and conjunctiva resulting from exposure to environmental factors. This condition typically arises when the ocular surface is inadequately protected, leading to drying and damage. It can manifest with symptoms such as irritation, redness, foreign body sensation, and photophobia in both eyes.

Use this code when documentation clearly indicates keratoconjunctivitis affecting both eyes, specifically attributed to exposure. This often occurs in patients with lagophthalmos, severe proptosis, or conditions preventing complete eyelid closure. Supporting documentation should specify the bilateral involvement and the etiologic factor of exposure.

• Ensure the documentation explicitly states "bilateral" involvement; otherwise, use the appropriate unilateral code.
• Distinguish from other forms of keratoconjunctivitis (e.g., allergic, infectious) by confirming exposure as the primary cause.
• Consider additional codes for underlying conditions contributing to the exposure, such as lagophthalmos (H02.2-) or exophthalmos (H06.2-).