G20.B

Non-Billable
ChapterG00–G99
Ranksubcategory
Official Description

Parkinson's disease with dyskinesia

Metadata & Insights
  • 2026 ICD-10-CM Edition - Effective October 1, 2025.
  • Non-billable category (requires more specific sub-code).
  • Chapter 6: Diseases of the Nervous System (G00-G99).

Instructional Notes

Excludes1(Not coded here)
  • drug induced dystonia (G24.0-)
General instructions are available for the parent sections:

Clinical Hierarchy

CH6Diseases of the nervous system (G00-G99)
G20-G26Extrapyramidal and movement disorders (G20-G26)
G20Parkinson's disease
G20.BParkinson's disease with dyskinesia
G20.B1Parkinson's disease with dyskinesia, without mention of fluctuations
G20.B2Parkinson's disease with dyskinesia, with fluctuations

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to G20.B:

categoryG20
Parkinson's disease
View context instructions
chapterCH6
Diseases of the nervous system (G00-G99)
View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to G20.B. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

4 raw paths

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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