ICD-10-CM > N00-N99 > N10-N16 > N13 > N13.7 N13.7 Vesicoureteral-reflux Non-Billable/Non-Specific Type 1 Excludes reflux-associated pyelonephritis (N11.0) Codes N13.70Vesicoureteral-reflux, unspecifiedN13.71Vesicoureteral-reflux without reflux nephropathyN13.72Vesicoureteral-reflux with reflux nephropathy without hydroureterN13.721Vesicoureteral-reflux with reflux nephropathy without hydroureter, unilateralN13.722Vesicoureteral-reflux with reflux nephropathy without hydroureter, bilateralN13.729Vesicoureteral-reflux with reflux nephropathy without hydroureter, unspecifiedN13.73Vesicoureteral-reflux with reflux nephropathy with hydroureterN13.731Vesicoureteral-reflux with reflux nephropathy with hydroureter, unilateralN13.732Vesicoureteral-reflux with reflux nephropathy with hydroureter, bilateralN13.739Vesicoureteral-reflux with reflux nephropathy with hydroureter, unspecified