2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Nervous System And Sense Organs 320-389 > Hereditary And Degenerative Diseases Of The Central Nervous System 330-338 > Other Extrapyramidal Disease And Abnormal Movement Disorders 333.* > 2006 ICD-9-CM Diagnosis 333.99 Other extrapyramidal diseases and abnormal movement disorders View the most recent version of ICD-9-CM 333.99 A disorder characterized by aching or burning sensations in the lower and rarely the upper extremities that occur prior to sleep or may awaken the patient from sleep. Complying with an irresistible urge to move the affected limbs brings temporary relief. Sleep may become disrupted, resulting in excessive daytime hypersomnolence. This condition may be associated with UREMIA; DIABETES; and rheumatoid arthritis. Restless Legs Syndrome differs from NOCTURNAL MYOCLONUS SYNDROME in that in the latter condition the individual does not report adverse sensory stimuli and it is primarily a sleep-associated movement disorder. (Adams et al., Principles of Neurology, 6th ed, p387; Schweiz Rundsch Med Prax 1997 Apr 30;86 333.99 is a specific code that can be used to specify a diagnosis 333.99 contains 12 index entries View the ICD-9-CM Volume 1 333.* hierarchy Alternate Terminology Neuroleptic-induced acute akathisia Restless legs  Index entries containing 333.99: Abnormal, abnormality, abnormalities - see also Anomaly movement 781.0 disorder NEC 333.90 specified NEC 333.99 specified type NEC 333.99 Acathisia 781.0 due to drugs 333.99 Akathisia, acathisia 781.0 due to drugs 333.99 neuroleptic-induced acute 333.99 Disorder - see also Disease movement NEC 333.90 specified type NEC 333.99 Serotonin syndrome 333.99 Syndrome - see also Disease serotonin 333.99