Mechanical lagophthalmos right lower eyelid

This code signifies an inability to fully close the right lower eyelid due to a mechanical obstruction or structural abnormality, rather than neurological impairment. This can lead to exposure of the ocular surface, potentially causing dryness, irritation, and corneal damage.

Apply this code when documentation specifies mechanical lagophthalmos affecting the right lower eyelid. This typically occurs following trauma, surgery, or conditions causing scarring or tissue contracture around the eyelid. Supporting documentation should clearly indicate the mechanical nature and laterality.

• Differentiate from paralytic lagophthalmos (H02.21-) which is due to nerve dysfunction.
• Ensure the documentation specifies "mechanical" and the correct laterality (right lower eyelid).
• Consider additional codes for the underlying cause of the mechanical obstruction, if known and documented.