The report was released by the Healthcare Cost and Utilization Project (HCUP) of the Agency for Healthcare Research and Quality. The report presents data on rates of all-cause 7-day readmissions compared with all-cause 30-day readmissions in 2014. For diagnoses with the highest 7-day readmission rates, the percentage of 30-day readmissions that occurred within 7 days is also presented. Finally, 7-day and 30-day readmission rates are reported by expected payer . . .