N13.5 Crossing vessel and stricture of ureter without hydronephrosis

Billable ICD-10-CM code, FY2026.

Applicable to

• Kinking and stricture of ureter without hydronephrosis

Excludes1 (never code together)

• Crossing vessel and stricture of ureter without hydronephrosis with infection (N13.6)

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) 689-690 in MDC 11.

Approximate ICD-9-CM (GEMs)

• 593.3 Stricture or kinking of ureter (approximate)

Code annotations containing back-references to N13.5

Back-references to N13.5

• Code Also: K68.2 Retroperitoneal fibrosis (", if applicable, associated obstruction of ureter (N13.5)")
• Type 1 Excludes: M72.8 Other fibroblastic disorders ("perirenal fasciitis NOS (N13.5)")
• Type 1 Excludes: N28.8 Other specified disorders of kidney and ureter ("ureteric stricture without hydronephrosis (N13.5)")

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 N13.5

• Angulation › ureter
• Compression › ureter
• Constriction › spastic › ureter
• Constriction › ureter
• Contraction (s), contracture, contracted › ureterovesical orifice (postinfectional)
• Disease, diseased › Ormond's
• Fasciitis › perirenal (with ureteral obstruction)
• Fibrosis, fibrotic › retroperitoneal › idiopathic (with ureteral obstruction)
• Intussusception (bowel) (colon) (enteric) (ileocecal) (ileocolic) (intestine) ( rectum) › ureter (with obstruction)
• Kink, kinking › ureter (pelvic junction)
• Narrowing › ureter
• Obliteration › ureter
• Obstruction, obstructed, obstructive › pelviureteral junction
• Obstruction, obstructed, obstructive › ureter (functional) (pelvic junction) NEC
• Occlusion, occluded › ureter (complete) (partial)
• Occlusion, occluded › ureteropelvic junction
• Occlusion, occluded › ureterovesical orifice
• Ormond's disease (with ureteral obstruction)
• Prolapse, prolapsed › ureter › with obstruction
• Spasm (s), spastic, spasticity › ureter
• Stricture › ureter (postoperative)
• Stricture › ureterovesical orifice
• Syndrome › Ormond's
• Syndrome › periurethral fibrosis

Nearby codes

• N13.2 Hydronephrosis with renal and ureteral calculous obstruction
• N13.3 Other and unspecified hydronephrosis
• N13.30 Unspecified hydronephrosis
• N13.39 Other hydronephrosis
• N13.4 Hydroureter
• N13.5 Crossing vessel and stricture of ureter without hydronephrosis (this code)
• N13.6 Pyonephrosis
• N13.7 Vesicoureteral-reflux
• N13.70 Vesicoureteral-reflux, unspecified
• N13.71 Vesicoureteral-reflux without reflux nephropathy
• N13.72 Vesicoureteral-reflux with reflux nephropathy without hydroureter