Acute follicular conjunctivitis, right eye

This code identifies an acute inflammation of the conjunctiva, specifically characterized by the presence of follicles, affecting the right eye. Follicles are small, lymphoid aggregates that appear as tiny, raised bumps on the conjunctival surface, often indicative of a viral etiology. The condition typically presents with redness, irritation, tearing, and discharge.

Apply this code when documentation clearly states a diagnosis of acute follicular conjunctivitis localized to the right eye. This is commonly seen in viral conjunctivitis (e.g., adenovirus) or chlamydial conjunctivitis. Ensure the physician's notes specify "acute" and "follicular" and laterality.

• Differentiate from acute serous or mucopurulent conjunctivitis, which have different ICD-10-CM codes.
• Verify laterality; separate codes exist for the left eye (H10.012) and bilateral involvement (H10.013).
• If the specific infectious agent is identified, consider coding it as an additional diagnosis.