H55.03

What This Code Means

This is a type of involuntary eye movement that occurs when vision is severely limited or blocked, such as in cases of blindness or severe visual impairment. The eyes make repetitive movements as a compensatory response to the lack of visual input.

Coding Tips

• •Verify the underlying cause of visual deprivation (such as congenital cataracts, corneal opacity, or severe refractive error) and code it separately if documented
• •Ensure the nystagmus is specifically related to visual deprivation rather than other causes like neurological conditions, and review clinical documentation to confirm the etiology