Mechanical lagophthalmos right eye, unspecified eyelid

This code describes the inability of the right eye's eyelid to close completely due to a mechanical obstruction or structural defect, rather than neurological impairment. This incomplete closure leaves the ocular surface exposed, leading to potential dryness, irritation, and corneal damage. The "unspecified eyelid" indicates that the specific upper or lower eyelid affected is not documented.

Use this code when documentation clearly indicates mechanical lagophthalmos affecting the right eye, and the specific eyelid (upper or lower) is not specified. This typically occurs following trauma, surgery, or due to anatomical abnormalities that physically prevent full eyelid closure. Supporting documentation would include physician notes detailing the mechanical nature of the lagophthalmos and its laterality.

• Ensure documentation specifies "mechanical" lagophthalmos to differentiate from paralytic or nocturnal types.
• Verify the affected eye (right, left, or bilateral) and the specific eyelid if known, as more specific codes exist.
• Consider co-occurring conditions such as corneal exposure or keratitis, which may require additional coding.