D9Y77
| Pos | Category | Selected Element & Definition |
|---|---|---|
| D | Section |
Radiation Therapy
|
| 9 | Body System |
Ear, Nose, Mouth and Throat
|
| Y | Modality |
Other Radiation
|
| 7 | Treatment Site |
Sinuses
|
| 7 | Modality Qualifier |
Contact Radiation
|