| D12.0 | Benign neoplasm of cecum | BILLABLE CODE |
| D12.1 | Benign neoplasm of appendix | BILLABLE CODE |
| D12.2 | Benign neoplasm of ascending colon | BILLABLE CODE |
| D12.3 | Benign neoplasm of transverse colon | BILLABLE CODE |
| D12.4 | Benign neoplasm of descending colon | BILLABLE CODE |
| D12.5 | Benign neoplasm of sigmoid colon | BILLABLE CODE |
| D12.6 | Benign neoplasm of colon, unspecified | BILLABLE CODE |
| D12.7 | Benign neoplasm of rectosigmoid junction | BILLABLE CODE |
| D12.8 | Benign neoplasm of rectum | BILLABLE CODE |
| D12.9 | Benign neoplasm of anus and anal canal | BILLABLE CODE |
