Movement Disorders[1] ICD-9-CM ICD-10-CM Hypokinetic Movement disorders Parkinson's disease (Primary or Idiopathic Parkinsonism) 332 G20 Secondary Parkinsonism G21 Parkinson plus syndromes Hallevorden-Spatz Disease G23.0 Progressive Supranuclear Ophthalmoplegia G23.1 Striatonigral deneneration G23.2 Hyperkinetic Movement disorders Dystonia G24 Drug induced dystonia G24.0 Idiopathic familial dystonia 333.6 G24.1 Idiopathic nonfamilial dystonia 333.7 G24.2 Spasmodic torticollis 333.83 G24.3 Ideopathic orofacial dystonia G24.4 Blepharospasm 333.81 G24.5 Other dystonias G24.8 Other extrapyramidal movement disorders G25 Essential tremor 333.1 G25.0 Drug induced tremor G25.1 Other specified form of tremor G25.2 Tremor unspecified R25.1 Myoclonus 333.2 G25.3 Opsoclonus 379.59 H57 Chorea (rapid, involuntary movement) Drug induced chorea G25.4 Rheumatic chorea (Sydenham's chorea) I02 Huntington's Chorea 333.4 G10 Ballismus (violent involuntary rapid and irregular movements) G25.85 Hemiballismus (affecting only one side of the body) G25.85 Athetosis (contorted torsion or twisting) 333.71 R25.8 Dyskinesia (abnormal, involuntary movement) Tardive dyskinesia Tic disorders (involuntary, compulsive, repetitive, stereotyped) F95 Tourette's syndrome F95.2 Drug-induced tics and tics of organic origin 333.3 G25.6 Stereotypic movement disorder F98.5 Paroxysmal nocturnal limb movement G25.80 Painful legs (or arms), moving toes (or fingers) syndrome G25.81 Sporadic restless leg syndrome G25.82 Familial restless leg syndrome G25.83 Stiff-person syndrome 333.91 G25.84 Abnormal head movements R25.0 Cramp and spasm R25.2 Fasciculation R25.3 Cerebral palsy (unspecified) 343.9 G80.9