| Section | D | Radiation Therapy |
| Body System | D | Gastrointestinal System |
| Modality | Y | Other Radiation: |
| Treatment Site 0 Esophagus |
Modality Qualifier 7 Contact Radiation 8 Hyperthermia F Plaque Radiation K Laser Interstitial Thermal Therapy |
Isotope Z None |
Qualifier Z None |
| Treatment Site 1 Stomach 2 Duodenum 3 Jejunum 4 Ileum 5 Colon 7 Rectum |
Modality Qualifier 7 Contact Radiation 8 Hyperthermia C Intraoperative Radiation Therapy (IORT) F Plaque Radiation K Laser Interstitial Thermal Therapy |
Isotope Z None |
Qualifier Z None |
| Treatment Site 8 Anus |
Modality Qualifier C Intraoperative Radiation Therapy (IORT) F Plaque Radiation K Laser Interstitial Thermal Therapy |
Isotope Z None |
Qualifier Z None |