Conjunctivitis due to adenovirus

This code represents an inflammation of the conjunctiva, the membrane lining the eyelids and covering the white part of the eye, specifically caused by an adenovirus infection. Patients typically present with symptoms such as redness, itching, tearing, and discharge, often accompanied by a viral prodrome.

Apply this code when documentation clearly indicates a diagnosis of conjunctivitis and specifies adenovirus as the causative agent. This is commonly seen in cases of viral conjunctivitis outbreaks, pharyngoconjunctival fever, or epidemic keratoconjunctivitis where adenovirus is confirmed or strongly suspected.

• Ensure the physician explicitly states "adenovirus" as the etiology; "viral conjunctivitis" alone is insufficient.
• Differentiate from other forms of conjunctivitis, such as bacterial (H10.0-H10.3) or allergic (H10.1-H10.4), which have distinct codes.
• If a specific type of adenovirus is identified (e.g., type 8, 19, or 37 causing epidemic keratoconjunctivitis), the documentation should still support the general adenovirus etiology.