H55.00

Approximate Synonyms

• Nystagmus

• Nystagmus eye condition)

Clinical Information

• A disorder characterized by involuntary movements of the eyeballs.

• Eye movement reflex stabilizing the retinal image of a visual stimulus to compensate for head or stimulus movement. Also, eye movement defects resulting from neurological, muscular, or genetic disorders.

• Involuntary movements of the eye that are divided into two types, jerk and pendular. Jerk nystagmus has a slow phase in one direction followed by a corrective fast phase in the opposite direction, and is usually caused by central or peripheral vestibular dysfunction. Pendular nystagmus features oscillations that are of equal velocity in both directions and this condition is often associated with visual loss early in life. Adams et al., Principles of Neurology, 6th ed, p272)

• Involuntary movements of the eyeballs. The presence or absence of nystagmus is often used in the diagnosis of a variety of neurological and visual disorders.

• Involuntary, rapid, rhythmic movement of the eyeball

• Involuntary, rapid, rhythmic movement of the eyeball.

Details

• H55.00 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

• The 2023 edition of ICD-10-CM H55.00 became effective on October 1, 2022.

• This is the American ICD-10-CM version of H55.00 – other international versions of ICD-10 H55.00 may differ.