| Section | D | Radiation Therapy |
| Body System | B | Respiratory System |
| Modality | 1 | Brachytherapy: |
| Treatment Site 0 Trachea 1 Bronchus 2 Lung 5 Pleura 6 Mediastinum 7 Chest Wall 8 Diaphragm |
Modality Qualifier 9 High Dose Rate (HDR) B Low Dose Rate (LDR) |
Isotope 7 Cesium 137 (Cs-137) 8 Iridium 192 (Ir-192) 9 Iodine 125 (I-125) B Palladium 103 (Pd-103) C Californium 252 (Cf-252) Y Other Isotope |
Qualifier Z None |