`N13.9` Obstructive and reflux uropathy, unspecified

Billable ICD-10-CM code, FY2026.

Applicable to

Urinary tract obstruction NOS

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) 698-700 in MDC 11.

Approximate ICD-9-CM (GEMs)

592.9 Urinary calculus, unspecified (approximate)
593.73 Other vesicoureteral reflux with reflux nephropathy NOS (approximate)
599.60 Urinary obstruction, unspecified (approximate)
599.69 Urinary obstruction, not elsewhere classified (approximate)

Code annotations containing back-references to N13.9

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 N13.9

Obstruction, obstructed, obstructive › urinary (moderate)
Obstruction, obstructed, obstructive › urinary (moderate) › organ or tract (lower)
Obstruction, obstructed, obstructive › uropathy
Uropathy › obstructive
Uropathy › reflux

Nearby codes

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
N13.9 Obstructive and reflux uropathy, unspecified (this code)