Acute toxic conjunctivitis, right eye

This code signifies an acute inflammatory response of the conjunctiva in the right eye, specifically caused by exposure to a toxic substance. This condition is characterized by sudden onset of redness, irritation, and discharge, resulting from chemical or irritant exposure rather than infection or allergy.

Apply this code when documentation clearly indicates acute conjunctivitis in the right eye due to a chemical irritant, fume, or other toxic exposure. Supporting documentation should specify the right eye and the acute nature of the toxic exposure as the etiology.

• Ensure documentation specifies "right eye" to differentiate from left (H10.212) or bilateral (H10.213).
• Distinguish from allergic conjunctivitis (H10.4x) or other forms of acute conjunctivitis (H10.0x, H10.1x) where a toxic etiology is not present.
• Look for specific mention of chemical exposure, fumes, or irritants in the patient's history or physician's notes.