Trichiasis without entropion right upper eyelid

This code signifies a condition where the eyelashes of the right upper eyelid are misdirected and grow inwards, rubbing against the surface of the eye. This occurs in the absence of an inward turning of the eyelid margin itself (entropion). It causes irritation, foreign body sensation, and potential corneal damage.

Use this code when documentation clearly indicates trichiasis affecting the right upper eyelid, and specifically states that entropion is not present. This diagnosis is typically made during an ophthalmological examination where misdirected eyelashes are observed without an inverted eyelid margin.

• Ensure laterality (right) and eyelid (upper) are explicitly documented.
• Distinguish carefully from codes for entropion with trichiasis, as this code specifies "without entropion."
• Look for documentation of symptoms like ocular irritation, epiphora, or corneal abrasion secondary to the misdirected lashes.