Cicatricial lagophthalmos left eye, unspecified eyelid

This code describes a condition where scar tissue prevents the left upper and/or lower eyelid from fully closing, leading to incomplete eyelid closure. This cicatricial (scar-related) lagophthalmos leaves the ocular surface exposed, increasing the risk of dryness, irritation, and corneal damage.

Use this code when documentation specifies lagophthalmos of the left eye caused by scarring, such as from trauma, burns, or previous surgery. The "unspecified eyelid" component indicates that the specific upper or lower eyelid involvement is not documented.

• Ensure documentation clearly states the lagophthalmos is due to cicatricial changes and affects the left eye.
• If the specific eyelid (upper or lower) is documented, a more specific code should be used (e.g., H02.21A for upper, H02.21B for lower).
• Code any underlying cause of the scarring (e.g., burn, trauma) as an additional diagnosis.