Acute follicular conjunctivitis, bilateral

This code signifies an acute inflammation of the conjunctiva characterized by the presence of follicles, affecting both eyes. Follicles are small, elevated lesions composed of lymphocytes, often seen in viral conjunctivitis. The condition presents with symptoms such as redness, irritation, tearing, and discharge in both eyes.

Use this code when documentation clearly indicates an acute follicular conjunctivitis affecting both the left and right eyes. This diagnosis is typically supported by an ophthalmological examination noting follicular hypertrophy on the conjunctival surface of both eyes, often in the context of a viral infection.

• Ensure documentation specifies "acute" and "follicular" conjunctivitis, and explicitly states "bilateral" involvement.
• Differentiate from other forms of acute conjunctivitis (e.g., mucopurulent, allergic) which have distinct codes.
• Consider co-reporting with a code for the underlying viral agent if identified and documented (e.g., B00.5 for herpesviral conjunctivitis).