| Full description | Malignant neoplasm of upper-inner quadrant of left female breast |
| Billable | Yes |
| Chapter | Chapter 2: Neoplasms (C00-D49) |
| Section | Malignant neoplasms of breast (C50) |
| Parent code | C50.21 — Malignant neoplasm of upper-inner quadrant of breast, female |