| Full description | Adult T-cell lymphoma/leukemia (HTLV-1-associated), in relapse |
| Billable | Yes |
| Chapter | Chapter 2: Neoplasms (C00-D49) |
| Section | Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96) |
| Parent code | C91.5 — Adult T-cell lymphoma/leukemia (HTLV-1-associated) |