Keratoconjunctivitis due to adenovirus

This code represents an inflammation of both the cornea and conjunctiva of the eye, specifically caused by an adenovirus infection. Patients typically present with symptoms such as redness, irritation, discharge, and photophobia.

Use this code when documentation clearly indicates a diagnosis of keratoconjunctivitis and specifies adenovirus as the causative agent. This often follows laboratory confirmation or strong clinical suspicion based on characteristic signs and symptoms during an adenovirus outbreak.

• Ensure the documentation explicitly states "adenovirus" as the etiology; otherwise, a non-specific or other infectious agent code may be more appropriate.
• Do not confuse with other forms of conjunctivitis or keratitis where the specific infectious agent is not identified or is different.
• Consider additional codes for laterality (e.g., H57.1x for ocular pain) if documented, but the primary diagnosis should reflect the infection.