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N13

Obstructive and reflux uropathy

• 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)

N13.0

Hydronephrosis with ureteropelvic junction obstruction

• Hydronephrosis with ureteropelvic junction obstruction due to calculus (N13.2)

• Hydronephrosis due to acquired occlusion of ureteropelvic junction

N13.1

Hydronephrosis with ureteral stricture, not elsewhere classified

• Hydronephrosis with ureteral stricture with infection (N13.6)

N13.2

Hydronephrosis with renal and ureteral calculous obstruction

• Hydronephrosis with renal and ureteral calculous obstruction with infection (N13.6)

N13.3

Other and unspecified hydronephrosis

• hydronephrosis with infection (N13.6)

N13.30

Unspecified hydronephrosis

N13.39

Other hydronephrosis

N13.4

Hydroureter

• congenital hydroureter (Q62.3-)
• hydroureter with infection (N13.6)
• vesicoureteral-reflux with hydroureter (N13.73-)

N13.5

Crossing vessel and stricture of ureter without hydronephrosis

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

• Kinking and stricture of ureter without hydronephrosis

N13.6

Pyonephrosis

• Conditions in N13.0-N13.5 with infection
• Obstructive uropathy with infection

N13.7

Vesicoureteral-reflux

• reflux-associated pyelonephritis (N11.0)

N13.70

Vesicoureteral-reflux, unspecified

• Vesicoureteral-reflux NOS

N13.71

Vesicoureteral-reflux without reflux nephropathy

N13.72

Vesicoureteral-reflux with reflux nephropathy without hydroureter

N13.721

Vesicoureteral-reflux with reflux nephropathy without hydroureter, unilateral

N13.722

Vesicoureteral-reflux with reflux nephropathy without hydroureter, bilateral

N13.729

Vesicoureteral-reflux with reflux nephropathy without hydroureter, unspecified

N13.73

Vesicoureteral-reflux with reflux nephropathy with hydroureter

N13.731

Vesicoureteral-reflux with reflux nephropathy with hydroureter, unilateral

N13.732

Vesicoureteral-reflux with reflux nephropathy with hydroureter, bilateral

N13.739

Vesicoureteral-reflux with reflux nephropathy with hydroureter, unspecified

N13.8

Other obstructive and reflux uropathy

• Urinary tract obstruction due to specified cause

N13.9

Obstructive and reflux uropathy, unspecified

• Urinary tract obstruction NOS