Readmissions occur frequently after hospital discharge and may reflect opportunities to improve the quality and safety of care provided during the index admission. Using a modified Delphi process, an expert panel reviewed 30-day postoperative readmissions over a 7-year period for patients who had received surgery within the Veterans Affairs system. The study suggests that more than 50% of postoperative readmissions may be related to the quality of surgical care provided during the index admission.