Vesicoureter-reflux w reflux nephrop w/o hydrourt, unil

This code signifies a condition where urine flows backward from the bladder into one kidney, causing damage to the kidney tissue (reflux nephropathy), but without dilation of the ureter. It specifically indicates that only one kidney is affected by this backward flow and associated damage.

Apply this code when documentation clearly states unilateral vesicoureteral reflux (VUR) with evidence of kidney scarring or damage (nephropathy) due to the reflux, and explicitly notes the absence of hydroureter. This is typically diagnosed through imaging studies like voiding cystourethrogram (VCUG) and renal scans.

• Ensure documentation specifies "unilateral" and "without hydroureter" to accurately assign this code.
• Distinguish from codes for VUR with hydroureter (N13.73-) or bilateral involvement (N13.722).
• Look for associated conditions like recurrent urinary tract infections (UTIs) which may be a symptom of VUR.