Paralytic lagophthalmos right eye, unspecified eyelid

This code describes the inability to completely close the right upper eyelid due to paralysis, specifically when the affected eyelid is not specified as upper or lower. This condition results in exposure of the ocular surface, leading to potential dryness, irritation, and corneal damage.

Use this code when documentation clearly indicates paralytic lagophthalmos affecting the right eye, without specifying whether the upper or lower eyelid is involved. This is typically seen in cases of facial nerve palsy (Bell's palsy, stroke) or other neurological conditions impacting eyelid function. Supporting documentation should include a physical exam noting incomplete eyelid closure and a diagnosis of paralytic lagophthalmos.

• Ensure laterality (right eye) is explicitly documented.
• Do not use this code if the specific eyelid (upper or lower) is identified; instead, use the more specific codes for paralytic lagophthalmos of the right upper or lower eyelid.
• Consider coding the underlying cause of the paralysis (e.g., G51.0 for Bell's palsy) as a primary diagnosis, with this code as a secondary diagnosis.