D41.20 (Neoplasm of uncertain behavior of unspecified ureter) compared with D41.22 (Neoplasm of uncertain behavior of left ureter), from the official CMS tabular data. D41.20 and D41.22 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. D41.20 and D41.22 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.
| D41.20Neoplasm of uncertain behavior of unspecified ureter | D41.22Neoplasm of uncertain behavior of left ureter | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | C00-D49 — Neoplasms (C00-D49) | C00-D49 — Neoplasms (C00-D49) |
| Definition | Neoplasm of uncertain behavior of unspecified ureter is a billable ICD-10-CM diagnosis code (D41.20). | Neoplasm of uncertain behavior of left ureter is a billable ICD-10-CM diagnosis code (D41.22). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources