Free Online ICD-9-CM Diagnosis Codes > 2009 > Diseases Of The Nervous System And Sense Organs 320-389 > Hereditary And Degenerative Diseases Of The Central Nervous System 330-337 > Other extrapyramidal disease and abnormal movement disorders 333.* >
shock-like contraction of a portion of a muscle, an entire muscle, or a group of muscles; may be part of a disease process or a normal physiological response.
Also applicable to/known as
Familial essential myoclonus
Progressive myoclonic epilepsy
Unverricht-Lundborg disease
Additional
Use additional E code to identify drug, if drug-induced
ICD-9-CM Volume 2 Index Entries That Refer To 333.2