involuntary, rapid, rhythmic movement of the eyeball.
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 eyeballs. The presence or absence of nystagmus is often used in the diagnosis of a variety of neurological and visual disorders.
ICD-9-CM Volume 2 Index Entries That Refer To 379.50
Nystagmus 379.50
associated with vestibular system disorders 379.54
2009 ICD-9-CM Diagnosis Code 379.50
379.50