Mechanical ectropion of left eye, unspecified eyelid

This code describes an outward turning of the lower eyelid margin of the left eye due to a mechanical cause, such as a tumor, scar, or edema, preventing the eyelid from resting against the globe. This results in exposure of the conjunctiva and can lead to irritation, epiphora, and corneal damage. The specific eyelid (upper or lower) is not documented.

Use this code when documentation specifies mechanical ectropion affecting the left eye, but the physician does not specify whether it is the upper or lower eyelid. This diagnosis is typically supported by an ophthalmological exam noting the outward eversion of the left eyelid margin and an underlying mechanical etiology.

• Ensure the documentation clearly states "mechanical" ectropion and specifies the "left eye."
• If the specific eyelid (upper or lower) is known, a more precise code (e.g., H02.121 for upper, H02.124 for lower) should be used.
• Distinguish from paralytic (H02.11-) or senile (H02.13-) ectropion, which have different underlying causes.