Mechanical entropion of left lower eyelid

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

Apply this code when documentation specifies mechanical entropion affecting the left lower eyelid. This diagnosis is typically supported by physical examination findings noting the inward rotation of the eyelid margin and associated symptoms. Differentiate from spastic or involutional entropion.

• Ensure laterality (left) and specific eyelid (lower) are clearly documented.
• Distinguish between mechanical, spastic, and involutional entropion; each has a unique code.
• Code any underlying cause of the mechanical entropion (e.g., scar, tumor) as an additional diagnosis.