D0Y1F
| Pos | Category | Selected Element & Definition |
|---|---|---|
| D | Section |
Radiation Therapy
|
| 0 | Body System |
Central and Peripheral Nervous System
|
| Y | Modality |
Other Radiation
|
| 1 | Treatment Site |
Brain Stem
|
| F | Modality Qualifier |
Plaque Radiation
|