Mechanical ectropion of left upper eyelid

This code describes an outward turning of the left upper eyelid margin due to mechanical factors, such as scarring, tumors, or trauma. This condition can lead to corneal exposure, irritation, and epiphora.

Assign this code when documentation clearly indicates a mechanical cause for ectropion affecting the left upper eyelid. Supporting documentation should specify the eyelid (upper, left) and the etiology (e.g., cicatrix, mass effect).

• Differentiate from paralytic or spastic ectropion, which have different code assignments.
• Ensure the laterality (left) and eyelid (upper) are explicitly documented.
• Code any underlying mechanical cause (e.g., scar, tumor) separately and sequence it first if it is the primary reason for the encounter.