 
| PCS-2023 > D > D7 > D7Y > D7Y3 | 
| D7Y | Lymphatic and Hematologic System, Other Radiation | |
| D7Y3 | Other Radiation, Lymphatics, Neck | |
| D7Y38 | Hyperthermia | |
| D7Y38Z | None | |
| D7Y38ZZ | Hyperthermia of Neck Lymphatics | |
| D7Y3F | Plaque Radiation | |
| D7Y3FZ | None | |
| D7Y3FZZ | Plaque Radiation of Neck Lymphatics | |
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