<P> Movement disorders are clinical syndromes with either an excess of movement or a paucity of voluntary and involuntary movements, unrelated to weakness or spasticity . Movement disorders are synonymous with basal ganglia or extrapyramidal diseases . Movement disorders are conventionally divided into two major categories - hyperkinetic and hypokinetic . </P> <P> Hyperkinetic movement disorders refer to dyskinesia, or excessive, often repetitive, involuntary movements that intrude upon the normal flow of motor activity . </P> <P> Hypokinetic movement disorders refer to akinesia (lack of movement), hypokinesia (reduced amplitude of movements), bradykinesia (slow movement) and rigidity . In primary movement disorders, the abnormal movement is the primary manifestation of the disorder . In secondary movement disorders, the abnormal movement is a manifestation of another systemic or neurological disorder . </P> <Table> <Tr> <Th> Movement Disorders </Th> <Th> ICD - 9 - CM </Th> <Th> ICD - 10 - CM </Th> </Tr> <Tr> <Td> Hypokinetic Movement disorders </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> Parkinson's disease (Primary or Idiopathic Parkinsonism) </Td> <Td> 332 </Td> <Td> G20 </Td> </Tr> <Tr> <Td> Secondary Parkinsonism </Td> <Td> </Td> <Td> G21 </Td> </Tr> <Tr> <Td> Parkinson plus syndromes </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> Hallevorden - Spatz Disease </Td> <Td> </Td> <Td> G23. 0 </Td> </Tr> <Tr> <Td> Progressive Supranuclear Ophthalmoplegia </Td> <Td> </Td> <Td> G23. 1 </Td> </Tr> <Tr> <Td> Striatonigral deneneration </Td> <Td> </Td> <Td> G23. 2 </Td> </Tr> <Tr> <Td> Hyperkinetic Movement disorders </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> Dystonia </Td> <Td> </Td> <Td> G24 </Td> </Tr> <Tr> <Td> Drug induced dystonia </Td> <Td> </Td> <Td> G24. 0 </Td> </Tr> <Tr> <Td> Idiopathic familial dystonia </Td> <Td> 333.6 </Td> <Td> G24. 1 </Td> </Tr> <Tr> <Td> Idiopathic nonfamilial dystonia </Td> <Td> 333.7 </Td> <Td> G24. 2 </Td> </Tr> <Tr> <Td> Spasmodic torticollis </Td> <Td> 333.83 </Td> <Td> G24. 3 </Td> </Tr> <Tr> <Td> Ideopathic orofacial dystonia </Td> <Td> </Td> <Td> G24. 4 </Td> </Tr> <Tr> <Td> Blepharospasm </Td> <Td> 333.81 </Td> <Td> G24. 5 </Td> </Tr> <Tr> <Td> Other dystonias </Td> <Td> </Td> <Td> G24. 8 </Td> </Tr> <Tr> <Td> Other extrapyramidal movement disorders </Td> <Td> </Td> <Td> G25 </Td> </Tr> <Tr> <Td> Essential tremor </Td> <Td> 333.1 </Td> <Td> G25. 0 </Td> </Tr> <Tr> <Td> Drug induced tremor </Td> <Td> </Td> <Td> G25. 1 </Td> </Tr> <Tr> <Td> Other specified form of tremor </Td> <Td> </Td> <Td> G25. 2 </Td> </Tr> <Tr> <Td> Tremor unspecified </Td> <Td> </Td> <Td> R25. 1 </Td> </Tr> <Tr> <Td> Myoclonus </Td> <Td> 333.2 </Td> <Td> G25. 3 </Td> </Tr> <Tr> <Td> Opsoclonus </Td> <Td> 379.59 </Td> <Td> H57 </Td> </Tr> <Tr> <Td> Chorea (rapid, involuntary movement) </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> Drug induced chorea </Td> <Td> </Td> <Td> G25. 4 </Td> </Tr> <Tr> <Td> Rheumatic chorea (Sydenham's chorea) </Td> <Td> </Td> <Td> I02 </Td> </Tr> <Tr> <Td> Huntington's Chorea </Td> <Td> 333.4 </Td> <Td> G10 </Td> </Tr> <Tr> <Td> Ballismus (violent involuntary rapid and irregular movements) </Td> <Td> </Td> <Td> G25. 85 </Td> </Tr> <Tr> <Td> Hemiballismus (affecting only one side of the body) </Td> <Td> </Td> <Td> G25. 85 </Td> </Tr> <Tr> <Td> Athetosis (contorted torsion or twisting) </Td> <Td> 333.71 </Td> <Td> R25. 8 </Td> </Tr> <Tr> <Td> Dyskinesia (abnormal, involuntary movement) </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> Tardive dyskinesia </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> Tic disorders (involuntary, compulsive, repetitive, stereotyped) </Td> <Td> </Td> <Td> F95 </Td> </Tr> <Tr> <Td> Tourette's syndrome </Td> <Td> </Td> <Td> F95. 2 </Td> </Tr> <Tr> <Td> Drug - induced tics and tics of organic origin </Td> <Td> 333.3 </Td> <Td> G25. 6 </Td> </Tr> <Tr> <Td> Stereotypic movement disorder </Td> <Td> </Td> <Td> F98. 5 </Td> </Tr> <Tr> <Td> Paroxysmal nocturnal limb movement </Td> <Td> </Td> <Td> G25. 80 </Td> </Tr> <Tr> <Td> Painful legs (or arms), moving toes (or fingers) syndrome </Td> <Td> </Td> <Td> G25. 81 </Td> </Tr> <Tr> <Td> Sporadic restless leg syndrome </Td> <Td> </Td> <Td> G25. 82 </Td> </Tr> <Tr> <Td> Familial restless leg syndrome </Td> <Td> </Td> <Td> G25. 83 </Td> </Tr> <Tr> <Td> Stiff - person syndrome </Td> <Td> 333.91 </Td> <Td> G25. 84 </Td> </Tr> <Tr> <Td> Abnormal head movements </Td> <Td> </Td> <Td> R25. 0 </Td> </Tr> <Tr> <Td> Cramp and spasm </Td> <Td> </Td> <Td> R25. 2 </Td> </Tr> <Tr> <Td> Fasciculation </Td> <Td> </Td> <Td> R25. 3 </Td> </Tr> <Tr> <Td> Cerebral palsy (unspecified) </Td> <Td> 343.9 </Td> <Td> G80. 9 </Td> </Tr> </Table>

What is the disorder of abnormally slow movements