ICD-10-CM Book 2026 Edition

Chapters ICD-10-CM Book Table of Content /
chapter 6 G00-G99 Diseases of the nervous system /
G20-G26 Extrapyramidal and movement disorders /
G20 Parkinson's disease

  Billable ICD-10-CM Code G20.C
G20.C
Parkinsonism, unspecified
Parkinsonism, NOS
excludes1
Parkinson's disease NOS (G20.A1)
Parkinson's disease with dyskinesia (G20.B-)
Parkinson's disease without dyskinesia (G20.A-)
secondary parkinsonism (G21.-)