C65.2 (Malignant neoplasm of left renal pelvis) compared with C65.9 (Malignant neoplasm of unspecified renal pelvis), from the official CMS tabular data. C65.2 and C65.9 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. C65.2 and C65.9 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.
| C65.2Malignant neoplasm of left renal pelvis | C65.9Malignant neoplasm of unspecified renal pelvis | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | C00-D49 — Neoplasms (C00-D49) | C00-D49 — Neoplasms (C00-D49) |
| Definition | Malignant neoplasm of left renal pelvis is a billable ICD-10-CM diagnosis code (C65.2). | Malignant neoplasm of unspecified renal pelvis is a billable ICD-10-CM diagnosis code (C65.9). |
| Includes | malignant neoplasm of pelviureteric junction malignant neoplasm of renal calyces | malignant neoplasm of pelviureteric junction malignant neoplasm of renal calyces |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources