N13.0 Hydronephrosis with ureteropelvic junction obstruction
Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.
Applicable to
Hydronephrosis due to acquired occlusion of ureteropelvic junction
Excludes2 (not included here)
Hydronephrosis with ureteropelvic junction obstruction due to calculus (N13.2)
Applies from N13 Obstructive and reflux uropathy
Excludes2 (not included here)
calculus of kidney and ureter without hydronephrosis (N20.-)
congenital obstructive defects of renal pelvis and ureter (Q62.0-Q62.3)
hydronephrosis with ureteropelvic junction obstruction (Q62.11)
obstructive pyelonephritis (N11.1)
MS-DRG index
Defines the logic of DRG(s) 693-694 in MDC 11.
Approximate ICD-9-CM (GEMs)
591 Hydronephrosis (approximate)
593.3 Stricture or kinking of ureter (approximate)
Code annotations containing back-references to N13.0
Back-references to N13
Type 1 Excludes: N11.1 Chronic obstructive pyelonephritis ("obstructive uropathy (N13.-)")
Code Also: N80.A4 Superficial endometriosis of ureter (", if applicable, obstructive and reflux uropathy (N13.-)")
Code Also: N80.A5 Deep endometriosis of ureter (", if applicable, obstructive and reflux uropathy (N13.-)")
Code Also: N80.A6 Endometriosis of ureter, unspecified depth (", if applicable, obstructive and reflux uropathy (N13.-)")
Diagnosis Index entries for N13.0
Hydronephrosis (atrophic) (early) (functionless) (intermittent) (primary) (secondary) NEC › with › obstruction (by) (of) › ureteropelvic junction (congenital) › acquired
Hydronephrosis (atrophic) (early) (functionless) (intermittent) (primary) (secondary) NEC › congenital › due to acquired occlusion of ureteropelvic junction
Obstruction, obstructed, obstructive › pelviureteral junction › with hydronephrosis
Stricture › pelviureteric junction (congenital) › acquired, with hydronephrosis
Stricture › ureteropelvic junction (congenital) › acquired, with hydronephrosis