Trichiasis without entropion left lower eyelid

This code describes a condition where the eyelashes of the left lower eyelid are misdirected, growing inwards and rubbing against the surface of the eye. This inward growth causes irritation, foreign body sensation, and potential damage to the cornea or conjunctiva, but without the inward turning of the eyelid margin itself (entropion).

Use this code when documentation specifically identifies trichiasis affecting the left lower eyelid, and explicitly states or implies the absence of entropion. This diagnosis is typically made during an ophthalmological examination where misdirected lashes are observed.

• Differentiate carefully between trichiasis and entropion; this code is specific to trichiasis without entropion.
• Ensure laterality (left) and eyelid (lower) are clearly documented to support this specific code.
• If both trichiasis and entropion are present, a different code (e.g., H02.045) would be more appropriate.