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ICD-10-CM Codes G00-G99 G20-G26

Section G20-G26 Extrapyramidal and movement disorders G20-G26

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( G10-G14 )

( G30-G32 )

Code List:

G20

Code hierarchy

G20 Parkinson's disease
- G20.A Parkinson's disease without dyskinesia
  - G20.A1 Parkinson's disease without dyskinesia, without mention of fluctuations
  - G20.A2 Parkinson's disease without dyskinesia, with fluctuations
- G20.B Parkinson's disease with dyskinesia
  - G20.B1 Parkinson's disease with dyskinesia, without mention of fluctuations
  - G20.B2 Parkinson's disease with dyskinesia, with fluctuations
- G20.C Parkinsonism, unspecified

Parkinson's disease

G21

Code hierarchy

G21 Secondary parkinsonism
- G21.0 Malignant neuroleptic syndrome
- G21.1 Other drug-induced secondary parkinsonism
  - G21.11 Neuroleptic induced parkinsonism
  - G21.19 Other drug induced secondary parkinsonism
- G21.2 Secondary parkinsonism due to other external agents
- G21.3 Postencephalitic parkinsonism
- G21.4 Vascular parkinsonism
- G21.8 Other secondary parkinsonism
- G21.9 Secondary parkinsonism, unspecified

Secondary parkinsonism

G23

Code hierarchy

G23 Other degenerative diseases of basal ganglia
- G23.0 Hallervorden-Spatz disease
- G23.1 Progressive supranuclear ophthalmoplegia [Steele-Richardson-Olszewski]
- G23.2 Striatonigral degeneration
- G23.3 Hypomyelination with atrophy of the basal ganglia and cerebellum
- G23.8 Other specified degenerative diseases of basal ganglia
- G23.9 Degenerative disease of basal ganglia, unspecified

Other degenerative diseases of basal ganglia

G24

Code hierarchy

G24 Dystonia
- G24.0 Drug induced dystonia
  - G24.01 Drug induced subacute dyskinesia
  - G24.02 Drug induced acute dystonia
  - G24.09 Other drug induced dystonia
- G24.1 Genetic torsion dystonia
- G24.2 Idiopathic nonfamilial dystonia
- G24.3 Spasmodic torticollis
- G24.4 Idiopathic orofacial dystonia
- G24.5 Blepharospasm
- G24.8 Other dystonia
- G24.9 Dystonia, unspecified

Dystonia

G25

Code hierarchy

G25 Other extrapyramidal and movement disorders
- G25.0 Essential tremor
- G25.1 Drug-induced tremor
- G25.2 Other specified forms of tremor
- G25.3 Myoclonus
- G25.4 Drug-induced chorea
- G25.5 Other chorea
- G25.6 Drug induced tics and other tics of organic origin
  - G25.61 Drug induced tics
  - G25.69 Other tics of organic origin
- G25.7 Other and unspecified drug induced movement disorders
  - G25.70 Drug induced movement disorder, unspecified
  - G25.71 Drug induced akathisia
  - G25.79 Other drug induced movement disorders
- G25.8 Other specified extrapyramidal and movement disorders
  - G25.81 Restless legs syndrome
  - G25.82 Stiff-man syndrome
  - G25.83 Benign shuddering attacks
  - G25.89 Other specified extrapyramidal and movement disorders
- G25.9 Extrapyramidal and movement disorder, unspecified

Other extrapyramidal and movement disorders

G26

Extrapyramidal and movement disorders in diseases classified elsewhere