Mechanical entropion of left upper eyelid

This code describes an inward turning of the left upper eyelid margin due to a mechanical cause, such as scarring, tumor, or other structural abnormality. This results in the eyelashes rubbing against the cornea and conjunctiva, potentially causing irritation, foreign body sensation, and corneal damage.

Use this code when documentation specifies mechanical entropion affecting the left upper eyelid. This typically occurs in patients with chronic inflammation, trauma, or previous surgeries that have altered the eyelid's structural integrity. Supporting documentation should clearly identify the mechanical etiology and the specific eyelid involved.

• Differentiate from spastic or senile entropion, which have different etiologies and corresponding codes.
• Ensure the laterality (left) and eyelid (upper) are clearly documented to support this specific code.
• Consider additional codes for any underlying mechanical cause (e.g., scar, tumor) if applicable and documented.