| Full description | Malignant neoplasm of unspecified site of unspecified female breast |
| Billable | Yes |
| Chapter | Chapter 2: Neoplasms (C00-D49) |
| Section | Malignant neoplasms of breast (C50) |
| Parent code | C50.91 — Malignant neoplasm of breast of unspecified site, female |