Photokeratitis, left eye

This code signifies an inflammation of the cornea (the clear front surface of the eye) and conjunctiva (the membrane lining the eyelids and covering the white part of the eye) in the left eye, caused by excessive exposure to ultraviolet (UV) radiation. This damage can result from sources like sunlamps, welding arcs, or prolonged sun exposure without proper eye protection.

Apply this code when documentation specifies photokeratitis affecting the left eye. This diagnosis is typically supported by a history of UV exposure and clinical findings such as eye pain, foreign body sensation, photophobia, and conjunctival injection in the left eye.

• Ensure laterality is clearly documented as "left eye" to support this specific code.
• Distinguish from other forms of keratitis (e.g., bacterial, viral) which have different etiologies and codes.
• Look for documentation of the specific UV source if available, though not required for this code.