N133-char group
Obstructive and reflux uropathy
⇄ Primary-code rule changed vs QĐ4469
Coding rules (TT06)
- ●Avoid — more specific 4-5 char codes exist (see below)
Coding guidance (WHO 2019)
Excl.: calculus of kidney and ureter without hydronephrosis (N20.-) congenital obstructive defects of renal pelvis and ureter (Q62.0-Q62.3) obstructive pyelonephritis (N11.1)
Codes within N13
N13.0Hydronephrosis with ureteropelvic junction obstructionN13.1Hydronephrosis with ureteral stricture, not elsewhere classifiedN13.2Hydronephrosis with renal and ureteral calculous obstructionN13.3Other and unspecified hydronephrosisN13.4HydroureterN13.5Kinking and stricture of ureter without hydronephrosisN13.6PyonephrosisN13.7Vesicoureteral-reflux-associated uropathyN13.8Other obstructive and reflux uropathyN13.9Obstructive and reflux uropathy, unspecified