ICD-10 code for vesicoureteral reflux

The ICD-10-CM code for vesicoureteral reflux is N13.70 (Vesicoureteral-reflux, unspecified). The official index lists 12 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on N13.70.

Within N13.7, choose N13.70 (unspecified) only when documentation doesn't support a more specific option: without reflux nephropathy (N13.71), with reflux nephropathy without hydroureter (N13.72) and with reflux nephropathy with hydroureter (N13.73).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 698 (Other Kidney and Urinary Tract Diagnoses with MCC, relative weight 1.6398), DRG 699 (Other Kidney and Urinary Tract Diagnoses with CC, relative weight 1.0003) and DRG 700 (Other Kidney and Urinary Tract Diagnoses without CC/MCC, relative weight 0.6741), in MDC 11 (Diseases and Disorders of the Kidney and Urinary Tract), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.