CMS has published corrections to its August 22, 2014 final update to the Medicare Hospital Inpatient Prospective Payment System (IPPS) and the Long-Term Care Hospital Prospective Payment System for FY 2015. Among other things, CMS made technical errors in its calculation of the operating and capital IPPS budget neutrality factors, outlier threshold, operating standardized amounts, capital federal rates, and impacts. CMS also made errors in determining the FY 2015 readmissions payment adjustment factors; CMS has revised the estimated savings under the Hospital Readmissions Reduction Program to $428 million, from $424 million in the final rule.