F98.4 vs G20
F98.4 (Stereotyped movement disorders) compared with G20 (Parkinson's disease), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. F98.4 carries an Excludes2 note covering G20: “movement disorders of organic origin (G20-G25)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| F98.4Stereotyped movement disorders | G20Parkinson's disease | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | F01-F99 — Mental, Behavioral and Neurodevelopmental Disorders (F01-F99) | G00-G99 — Diseases of the Nervous System (G00-G99) |
| Definition | Stereotyped movement disorders is a billable ICD-10-CM diagnosis code (F98.4). | Parkinson's disease is a non-billable ICD-10-CM category code (G20). |
| Includes | Stereotype/habit disorder | Hemiparkinsonism Idiopathic Parkinsonism or Parkinson's disease Paralysis agitans Primary Parkinsonism or Parkinson's disease |
| 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-) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources