G21.3 Postencephalitic parkinsonism
Billable / valid for submission ICD10CM Release FY2026
Version history
| Release | Valid from | Valid to | Description | Billable |
|---|---|---|---|---|
| FY2026 | 2025-10-01 | current | Postencephalitic parkinsonism | yes |
Related codes in G21
- 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
- G21.4 Vascular parkinsonism
- G21.8 Other secondary parkinsonism
- G21.9 Secondary parkinsonism, unspecified