G20.B vs G24.0
G20.B (Parkinson's disease with dyskinesia) compared with G24.0 (Drug induced dystonia), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. G20.B carries an Excludes1 note covering G24.0: “drug induced dystonia (G24.0-)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| G20.BParkinson's disease with dyskinesia | G24.0Drug induced dystonia | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | G00-G99 — Diseases of the Nervous System (G00-G99) | G00-G99 — Diseases of the Nervous System (G00-G99) |
| Definition | Parkinson's disease with dyskinesia is a non-billable ICD-10-CM category code (G20.B). | Drug induced dystonia is a non-billable ICD-10-CM category code (G24.0). |
| Includes | — | dyskinesia |
| Use additional code | code, if applicable, to identify: dementia with anxiety (F02.84, F02.A4, F02.B4, F02.C4) dementia with behavioral disturbance (F02.81-, F02.A1-, F02.B1-, F02.C1-) | code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources