Mechanical lagophthalmos unspecified eye, unspecified eyelid

This code signifies an inability to fully close the eyelid due to a physical obstruction or structural issue, rather than nerve paralysis. This mechanical interference prevents complete apposition of the upper and lower eyelids, leaving the globe exposed. The specific cause, laterality, and affected eyelid are not documented.

Apply this code when documentation indicates lagophthalmos is due to a mechanical obstruction (e.g., scarring, tumor, proptosis) and the physician does not specify which eye or which eyelid is affected. This code is appropriate when the clinical picture clearly points to a mechanical etiology but lacks granular detail regarding laterality or specific eyelid involvement.

• Avoid using this code if the documentation specifies the affected eye (right, left, or bilateral) or eyelid (upper, lower).
• Do not use for paralytic lagophthalmos (e.g., due to facial nerve palsy); refer to codes in the G51.0 category.
• Query the provider for more specific information regarding laterality and the specific eyelid involved to allow for a more precise code assignment.