| Full description | Malignant neoplasm of overlapping sites of rectum, anus and anal canal |
| Billable | Yes |
| Chapter | Chapter 2: Neoplasms (C00-D49) |
| Section | Malignant neoplasms of digestive organs (C15-C26) |
| Parent code | C21 — Malignant neoplasm of anus and anal canal |