Exposure keratoconjunctivitis, left eye

This code signifies inflammation of the cornea and conjunctiva in the left eye due to inadequate protection from environmental elements. This typically results from incomplete eyelid closure, leading to corneal drying and irritation.

Apply this code when documentation specifies exposure keratoconjunctivitis affecting the left eye. This condition is often seen in patients with facial nerve palsy, exophthalmos, or severe lagophthalmos. Look for physician notes detailing corneal drying, foreign body sensation, redness, and photophobia in the left eye.

• Differentiate from other forms of keratoconjunctivitis by confirming the "exposure" etiology.
• Ensure laterality is clearly documented as "left eye" to support this specific code.
• Consider co-reporting underlying conditions causing the exposure, such as facial nerve palsy (G51.0) or exophthalmos (H05.2-).