Mechanical lagophthalmos left lower eyelid

This code signifies an inability to fully close the left lower eyelid due to a mechanical obstruction or structural abnormality. This mechanical interference prevents complete apposition of the eyelid margins, potentially leading to corneal exposure and irritation.

Apply this code when documentation specifies mechanical lagophthalmos affecting the left lower eyelid. This typically occurs following trauma, surgery, tumor growth, or scarring that physically impedes eyelid closure. Ensure the medical record clearly distinguishes the mechanical nature from paralytic causes.

• Differentiate from paralytic lagophthalmos (H02.21-) which is due to nerve dysfunction.
• Specify laterality and eyelid (upper/lower) as these are distinct codes.
• Look for documentation of the underlying cause of the mechanical obstruction, which may require an additional code.