N11.1   Chronic obstructive pyelonephritis
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
N13.30   Unspecified hydronephrosis
N13.39   Other hydronephrosis
N13.4   Hydroureter
N13.8   Other obstructive and reflux uropathy
N20.0   Calculus of kidney
N20.1   Calculus of ureter
N20.2   Calculus of kidney with calculus of ureter
N20.9   Urinary calculus, unspecified
N21.0   Calculus in bladder
N21.1   Calculus in urethra
N21.8   Other lower urinary tract calculus
N21.9   Calculus of lower urinary tract, unspecified