N13.0 vs N13.2
N13.0 (Hydronephrosis with ureteropelvic junction obstruction) compared with N13.2 (Hydronephrosis with renal and ureteral calculous obstruction), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. N13.0 carries an Excludes2 note covering N13.2: “Hydronephrosis with ureteropelvic junction obstruction due to calculus (N13.2)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| N13.0Hydronephrosis with ureteropelvic junction obstruction | N13.2Hydronephrosis with renal and ureteral calculous obstruction | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | N00-N99 — Diseases of the Genitourinary System (N00-N99) | N00-N99 — Diseases of the Genitourinary System (N00-N99) |
| Definition | Hydronephrosis with ureteropelvic junction obstruction is a billable ICD-10-CM diagnosis code (N13.0). | Hydronephrosis with renal and ureteral calculous obstruction is a billable ICD-10-CM diagnosis code (N13.2). |
| Includes | pyelonephritis Hydronephrosis due to acquired occlusion of ureteropelvic junction | pyelonephritis |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources