| D120 |
Benign neoplasm: Caecum |
| D121 |
Benign neoplasm: Appendix |
| D122 |
Benign neoplasm: Ascending colon |
| D123 |
Benign neoplasm: Transverse colon |
| D124 |
Benign neoplasm: Descending colon |
| D125 |
Benign neoplasm: Sigmoid colon |
| D126 |
Benign neoplasm: Colon, unspecified |
| D127 |
Benign neoplasm: Rectosigmoid junction |
| D128 |
Benign neoplasm: Rectum |
| D129 |
Benign neoplasm: Anus and anal canal |