N13 Obstructive and reflux uropathy

Non-billable header with 10 child codes.

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)

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)

Codes under N13

• N13.0 Hydronephrosis with ureteropelvic junction obstruction
• N13.1 Hydronephrosis with ureteral stricture, not elsewhere classified
• N13.2 Hydronephrosis with renal and ureteral calculous obstruction
• N13.3 Other and unspecified hydronephrosis
• N13.4 Hydroureter
• N13.5 Crossing vessel and stricture of ureter without hydronephrosis
• N13.6 Pyonephrosis
• N13.7 Vesicoureteral-reflux
• N13.8 Other obstructive and reflux uropathy
• N13.9 Obstructive and reflux uropathy, unspecified

Code annotations containing back-references to N13

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.-)")

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.-)")

Nearby codes

• N13 Obstructive and reflux uropathy (this code)
• N13.0 Hydronephrosis with ureteropelvic junction obstruction
• N13.1 Hydronephrosis with ureteral stricture, not elsewhere classified
• N13.2 Hydronephrosis with renal and ureteral calculous obstruction
• N13.3 Other and unspecified hydronephrosis
• N13.30 Unspecified hydronephrosis