Mechanical entropion of right lower eyelid

This code describes an inward turning of the right lower eyelid margin due to a mechanical cause, such as scarring, tumor, or trauma. This condition causes the eyelashes to rub against the cornea and conjunctiva, leading to irritation, foreign body sensation, epiphora, and potential corneal damage.

Use this code when documentation clearly indicates mechanical entropion affecting the right lower eyelid. This typically occurs in patients with a history of trauma, inflammation, or surgery that has altered the eyelid's structural integrity. Supporting documentation should specify the mechanical etiology and laterality.

• Differentiate from spastic or senile entropion, which have different underlying causes and codes.
• Ensure the documentation specifies "mechanical" and the correct laterality (right lower eyelid).
• Code any associated corneal abrasions or ulcers separately, linking them to the entropion if appropriate.