D24.2 (Benign neoplasm of left breast) compared with D24.9 (Benign neoplasm of unspecified breast), from the official CMS tabular data. D24.2 and D24.9 code the same condition on opposite sides.
Same condition; these differ only in which side is documented.
These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.
Source: ICD-10-CM tabular list (laterality variant derived from the code title)
Same condition, opposite side. D24.2 and D24.9 name the same condition on opposite sides of the body.
Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.
| D24.2Benign neoplasm of left breast | D24.9Benign neoplasm of unspecified breast | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | C00-D49 — Neoplasms (C00-D49) | C00-D49 — Neoplasms (C00-D49) |
| Definition | Benign neoplasm of left breast is a billable ICD-10-CM diagnosis code (D24.2). | Benign neoplasm of unspecified breast is a billable ICD-10-CM diagnosis code (D24.9). |
| Includes | benign neoplasm of connective tissue of breast benign neoplasm of soft parts of breast fibroadenoma of breast | benign neoplasm of connective tissue of breast benign neoplasm of soft parts of breast fibroadenoma of breast |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources