FY 2018 IPPS Final Rule: Hospital Readmissions Reduction Program                                                    Supplemental DRG Relative Weight Information	
"NOTE: data provided can be used to estimate the FY 2018 Readmission Payment Adjustment Factors.  Estimated factors may not precisely match the FY 2018 readmission payment adjustment factors because CMS uses payments reported on MedPAR to calculate the readmission payment adjustment factors as described in the FY 2018 IPPS Final Rule. For more information on how to calculate the readmission payment adjustment factors, please visit: http://www.cms.gov/Medicare/Medicare-Fee-for-Service-Payment/AcuteInpatientPPS/Readmissions-Reduction-Program.html"	
Variable Name	Variable Description
PROVIDER	Medicare Provider Number or CMS Certification Number (CCN)
Number of AMI Cases for FY 2013	Number of AMI Cases Included in the Calculations for the Readmissions Payment Adjustment Factor in the March 2014 update of the FY 2013 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of AMI Transfer Adjusted Cases for FY 2013	Number of AMI Transfer Adjusted Cases Included in the Calculation of the Readmissions Payment Adjustment Factor in the March 2014 update of the FY 2013 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of DRG Relative Weights for AMI for FY 2013 (V30)	Sum of DRG Relative Weights for AMI cases in the March 2014 update of the FY 2013 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of Transfer Adjusted  DRG Relative Weights for AMI for FY 2013 (V30)	Sum of Transfer Adjusted DRG Relative Weights for AMI cases in the March 2014 update of the FY 2013 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of PN Cases for FY 2013	Number of PN Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the March 2014 update of the FY 2013 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of PN Transfer Adjusted Cases for FY 2013	Number of PN Transfer Adjusted Cases Included in the Calculation of the Readmissions Payment Adjustment Factor in the March 2014 update of the FY 2013 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of DRG Relative Weights for PN for FY 2013 (V30)	Sum of DRG Relative Weights for PN cases in the March 2014 update of the FY 2013 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of Transfer Adjusted  DRG Relative Weights for PN  for FY 2013 (V30)	Sum of Transfer Adjusted DRG Relative Weights for PN cases in the March 2014 update of the FY 2013 MedPAR that are within the  FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of HF Cases for FY 2013	Number of HF Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the March 2014 update of the FY 2013 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of HF Transfer Adjusted Cases for FY 2013	Number of HF Transfer Adjusted Cases Included in the Calculation of the Readmissions Payment Adjustment Factor in the March 2014 update of the FY 2013 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of DRG Relative Weights for HF for FY 2013 (V30)	Sum of DRG Relative Weights for HF cases in the March 2014 update of the FY 2013 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of Transfer Adjusted DRG Relative Weights for HF  for FY 2013 (V30)	Sum of Transfer Adjusted DRG Relative Weights for HF cases in the March 2014 update of the FY 2013 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of HK Cases for FY 2013	Number of HK Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the March 2014 update of the FY 2013 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of HK Transfer Adjusted Cases for FY 2013	Number of HK Transfer Adjusted Cases Included in the Calculation of the Readmissions Payment Adjustment Factor in the March 2014 update of the FY 2013 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of DRG Relative Weights for HK for FY 2013 (V30)	Sum of DRG Relative Weights for HK cases in the March 2014 update of the FY 2013 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of Transfer Adjusted DRG Relative Weights for HK for FY 2013 (V30)	Sum of Transfer Adjusted DRG Relative Weights for HK cases in the March 2014 update of the FY 2013 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of COPD Cases for FY 2013	Number of COPD Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the March 2014 update of the FY 2013 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of COPD Transfer Adjusted Cases for FY 2013	Number of COPD Transfer Adjusted Cases Included in the Calculation of the Readmissions Payment Adjustment Factor in the March 2014 update of the FY 2013 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of DRG Relative Weights for COPD for FY 2013 (V30)	Sum of DRG Relative Weights for COPD cases in the March 2014 update of the FY 2013 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of Transfer Adjusted DRG Relative Weights for COPD for FY 2013 (V30)	Sum of Transfer Adjusted DRG Relative Weights for COPD cases in the March 2014 update of the FY 2013 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of CABG Cases for FY 2013	Number of CABG Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the March 2014 update of the FY 2013 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of CABG Transfer Adjusted Cases for FY 2013	Number of CABG Transfer Adjusted Cases Included in the Calculation of the Readmissions Payment Adjustment Factor in the March 2014 update of the FY 2012 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of DRG Relative Weights for CABG for FY 2013 (V30)	Sum of DRG Relative Weights for CABG cases in the March 2014 update of the FY 2012 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of Transfer Adjusted DRG Relative Weights for CABG for FY 2013 (V30)	Sum of Transfer Adjusted DRG Relative Weights for CABG cases in the March 2014 update of the FY 2013 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of AMI Cases for FY 2014	Number of AMI Cases Included in the Calculations for the Readmissions Payment Adjustment Factor in the March 2015 update of the FY 2014 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of AMI Transfer Adjusted Cases for FY 2014	Number of AMI Transfer Adjusted Cases Included in the Calculation of the Readmissions Payment Adjustment Factor in the March 2015 update of the FY 2014 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of DRG Relative Weights for AMI for FY 2014 (V31)	Sum of DRG Relative Weights for AMI cases in the March 2015 update of the FY 2014 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of Transfer Adjusted  DRG Relative Weights for AMI for FY 2014 (V31)	Sum of Transfer Adjusted DRG Relative Weights for AMI cases in the March 2015 update of the FY 2014 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of PN Cases for FY 2014	Number of PN Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the March 2015 update of the FY 2014 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of PN Transfer Adjusted Cases for FY 2014	Number of PN Transfer Adjusted Cases Included in the Calculation of the Readmissions Payment Adjustment Factor in the March 2015 update of the FY 2014 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of DRG Relative Weights for PN for FY 2014 (V31)	Sum of DRG Relative Weights for PN cases in the March 2015 update of the FY 2014 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of Transfer Adjusted DRG Relative Weights for PN for FY 2014 (V31)	Sum of Transfer Adjusted DRG Relative Weights for PN cases in the March 2015 update of the FY 2014 MedPAR that are within the  FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of HF Cases for FY 2014	Number of HF Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the March 2015 update of the FY 2014 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of HF Transfer Adjusted Cases for FY 2014	Number of HF Transfer Adjusted Cases Included in the Calculation of the Readmissions Payment Adjustment Factor in the March 2015 update of the FY 2014 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of DRG Relative Weights for HF for FY 2014 (V31)	Sum of DRG Relative Weights for HF cases in the March 2015 update of the FY 2014 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of Transfer Adjusted DRG Relative Weights for HF for FY 2014 (V31)	Sum of Transfer Adjusted DRG Relative Weights for HF cases in the March 2015 update of the FY 2014 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of HK Cases for FY 2014	Number of HK Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the March 2015 update of the FY 2014 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of HK Transfer Adjusted Cases for FY 2014	Number of HK Transfer Adjusted Cases Included in the Calculation of the Readmissions Payment Adjustment Factor in the March 2015 update of the FY 2014 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of DRG Relative Weights for HK for FY 2014 (V31)	Sum of DRG Relative Weights for HK cases in the March 2015 update of the FY 2014 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of Transfer Adjusted DRG Relative Weights for HK for FY 2014 (V31)	Sum of Transfer Adjusted DRG Relative Weights for HK cases in the March 2015 update of the FY 2014 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of COPD Cases for FY 2014	Number of COPD Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the March 2015 update of the FY 2014 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of COPD Transfer Adjusted Cases for FY 2014	Number of COPD Transfer Adjusted Cases Included in the Calculation of the Readmissions Payment Adjustment Factor in the March 2015 update of the FY 2014 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of DRG Relative Weights for COPD for FY 2014 (V31)	Sum of DRG Relative Weights for COPD cases in the March 2015 update of the FY 2014 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of Transfer Adjusted DRG Relative Weights for COPD for FY 2014 (V31)	Sum of Transfer Adjusted DRG Relative Weights for COPD cases in the March 2015 update of the FY 2014 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of CABG Cases for FY 2014	Number of CABG Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the March 2015 update of the FY 2014 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of CABG Transfer Adjusted Cases for FY 2014	Number of CABG Transfer Adjusted Cases Included in the Calculation of the Readmissions Payment Adjustment Factor in the March 2015 update of the FY 2014 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of DRG Relative Weights for CABG for FY 2014 (V31)	Sum of DRG Relative Weights for CABG cases in the March 2015 update of the FY 2014 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of Transfer Adjusted  DRG Relative Weights for CABG for FY 2014 (V31)	Sum of Transfer Adjusted DRG Relative Weights for CABG cases in the March 2015 update of the FY 2014 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of AMI Cases for FY 2015	Number of AMI Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the December 2015 update of the FY 2015 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of AMI Transfer Adjusted Cases for FY 2015	Number of AMI Transfer Adjusted Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the December 2015 update of the FY 2015 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of DRG Relative Weights for AMI for FY 2015 (V32)	Sum of DRG Relative Weights for AMI cases in the December 2015 update of the FY 2015 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of Transfer Adjusted DRG Relative Weights for AMI for FY 2015 (V32)	Sum of Transfer Adjusted DRG Relative Weights for AMI cases in the December 2015 update of the FY 2015 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of PN Cases for FY 2015	Number of PN Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the December 2015 update of the FY 2015 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of PN Transfer Adjusted Cases for FY 2015	Number of PN Transfer Adjusted Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the December 2015 update of the FY 2015 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of DRG Relative Weights for PN for FY 2015 (V32)	Sum of DRG Relative Weights for PN cases in the December 2015 update of the FY 2015 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of Transfer Adjusted Relative Weights for PN for FY 2015 (V32)	Sum of Transfer Adjusted DRG Relative Weights for PN cases in the December 2015 update of the FY 2015 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of HF Cases for FY 2015	Number of HF Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the December 2015 update of the FY 2015 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of HF Transfer Adjusted Cases for FY 2015	Number of HF Transfer Adjusted Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the December 2015 update of the FY 2015 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of DRG Relative Weights for HF for FY 2015 (V32)	Sum of DRG Relative Weights for HF cases in the December 2015 update of the FY 2015 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of Transfer Adjusted HF DRG Relative Weights for FY 2015 (V32)	Sum of Transfer Adjusted DRG Relative Weights for HF cases in the December 2015 update of the FY 2015 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of HK Cases for FY 2015	Number of HK Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the December 2015 update of the FY 2015 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of HK Transfer Adjusted Cases for FY 2015	Number of HK Transfer Adjusted Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the December 2015 update of the FY 2015 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of DRG Relative Weights for HK for FY 2015 (V32)	Sum of DRG Relative Weights for HK cases in the December 2015 update of the FY 2015 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of Transfer Adjusted Relative Weights for HK for FY 2015 (V32)	Sum of Transfer Adjusted DRG Relative Weights for HK cases in the December 2015 update of the FY 2015 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of COPD Cases for FY 2015	Number of COPD Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the December 2015 update of the FY 2015 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of COPD Transfer Adjusted Cases for FY 2015	Number of COPD Transfer Adjusted Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the December 2015 update of the FY 2015 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of DRG Relative Weights for COPD for FY 2015 (V32)	Sum of DRG Relative Weights for COPD cases in the December 2015 update of the FY 2015 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of Transfer Adjusted  DRG Relative Weights for COPD for FY 2015 (V32)	Sum of Transfer Adjusted DRG Relative Weights for COPD cases in the December 2015 update of the FY 2015 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of CABG Cases for FY 2015	Number of CABG Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the December 2015 update of the FY 2015 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of CABG Transfer Adjusted Cases for FY 2015	Number of CABG Transfer Adjusted Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the December 2015 update of the FY 2015 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of DRG Relative Weights for CABG for FY 2015 (V32)	Sum of DRG Relative Weights for CABG cases in the December 2015 update of the FY 2015 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of Transfer Adjusted  DRG Relative Weights for CABG for FY 2015 (V32)	Sum of Transfer Adjusted DRG Relative Weights for CABG cases in the December 2015 update of the FY 2015 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of AMI Cases for FY 2016	Number of AMI Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the March 2017 update of the FY 2016 MedPAR that are within in the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of AMI Transfer Adjusted Cases for FY 2016	Number of AMI Transfer Adjusted Cases Included in the Calculation of the Readmissions Payment Adjustment Factor in the March 2017 update of the FY 2016 MedPAR that are within in the applicable period FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of DRG Relative Weights for AMI for FY 2016 (V33)	Sum of DRG Relative Weights for AMI cases in the March 2017 update of the FY 2016 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of Transfer Adjusted DRG Relative Weights for AMI for FY 2016 (V33)	Sum of Transfer Adjusted DRG Relative Weights for AMI cases in the March 2017 update of the FY 2016 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of PN Cases for FY 2016	Number of PN Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the March 2017 update of the FY 2016 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of PN Transfer Adjusted Cases for FY 2016	Number of PN Transfer Adjusted Cases Included in the Calculation of the Readmissions Payment Adjustment Factor in the March 2017 update of the FY 2016 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of DRG Relative Weights for PN for FY 2016 (V33)	Sum of DRG Relative Weights for PN cases in the March 2017 update of the FY 2016 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of Transfer Adjusted  DRG Relative Weights for PN for FY 2016 (V33)	Sum of Transfer Adjusted DRG Relative Weights for PN cases in the March 2017 update of the FY 2016 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of HF Cases for FY 2016	Number of HF Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the March 2017 update of the FY 2016 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of HF Transfer Adjusted Cases for FY 2016	"Number of HF Transfer Adjusted Cases Included in the Calculation of the Readmissions Payment Adjustment Factor in the March 2017 update of the FY 2016 MedPAR that are within the applicable period of July 1, 2011 to June 30, 2014. Data used to estimate the numerator of the readmission payment adjustment factor. "
Sum of DRG Relative Weights for HF for FY 2016 (V33)	Sum of DRG Relative Weights for HF cases in the March 2017 update of the FY 2016 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of Transfer Adjusted DRG Relative Weights for HF for FY 2016 (V33)	Sum of Transfer Adjusted DRG Relative Weights for HF cases in the March 2017 update of the FY 2016 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of HK Cases for FY 2016	Number of HK Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the March 2017 update of the FY 2016 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of HK Transfer Adjusted Cases for FY 2016	Number of HK Transfer Adjusted Cases Included in the Calculation of the Readmissions Payment Adjustment Factor in the March 2017 update of the FY 2016 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of DRG Relative Weights for HK for FY 2016 (V33)	Sum of DRG Relative Weights for HK cases in the March 2017 update of the FY 2016 MedPAR that are within the  FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of Transfer Adjusted DRG Relative Weights for   HK FY 2016 (V33)	Sum of Transfer Adjusted DRG Relative Weights for HK cases in the March 2017 update of the FY 2016 MedPAR that are within the  FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of COPD Cases for FY 2016	Number of COPD Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the March 2017 update of the FY 2016 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of COPD Transfer Adjusted Cases for FY 2016	Number of COPD Transfer Adjusted Cases Included in the Calculation of the Readmissions Payment Adjustment Factor in the March 2017 update of the FY 2016 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of DRG Relative Weights for COPD for FY 2016 (V33)	Sum of DRG Relative Weights for COPD cases in the March 2017 update of the FY 2016 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of Transfer Adjusted  DRG Relative Weights for COPD for FY 2016 (V33)	Sum of Transfer Adjusted DRG Relative Weights for COPD cases in the March 2017 update of the FY 2016 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of CABG Cases for FY 2016	Number of CABG Cases Included in the Calculation for the Readmissions Payment Adjustment Factor in the March 2017 update of the FY 2016 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Number of CABG Transfer Adjusted Cases for FY 2016	Number of CABG Transfer Adjusted Cases Included in the Calculation of the Readmissions Payment Adjustment Factor in the March 2017 update of the FY 2016 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of DRG Relative Weights for CABG for FY 2016 (V33)	Sum of DRG Relative Weights for CABG cases in the March 2017 update of the FY 2016 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of Transfer Adjusted  DRG Relative Weights for CABG for FY 2016 (V33)	Sum of Transfer Adjusted DRG Relative Weights for CABG cases in the March 2017 update of the FY 2016 MedPAR that are within the FY 18 applicable period. Data used to estimate the numerator of the readmission payment adjustment factor. 
Sum of all DRG Weights for FY 2011 (V28)	Sum of DRG Relative Weights for all cases in the March 2012 update of the FY 2011 MedPAR within the FY 18 applicable period. This is used to estimate the denominator in the calculation of the readmissions payment adjustment factor. 
Sum of all Transfer Adjusted DRG Weights for FY 2011 (V28)	Sum of Transfer Adjusted DRG Relative Weights for all cases in the March 2012 update of the FY 2011 MedPAR in the FY 18 applicable period. This is used to estimate the denominator in the calculation of the readmissions payment adjustment factor. 
Number of Cases for FY 2011	Number of Cases in the March 2012 update of the FY 2011 MedPAR in the FY 18 applicable period. This is used to estimate the denominator in the calculation of the readmissions payment adjustment factor. 
Number of Transfer Adjusted Cases for FY 2011	Number of Transfer Adjusted Cases in the March 2012 update of the FY 2011 MedPAR in the FY 18 applicable period. This is used to estimate the denominator in the calculation of the readmissions payment adjustment factor. 
Sum of all DRG Weights for FY 2013 (V30)	Sum of DRG Relative Weights for all cases in the March 2014 update of the FY 2013 MedPAR in the FY 18 applicable period. This is used to estimate the denominator in the calculation of the readmissions payment adjustment factor. 
Sum of all Transfer Adjusted DRG Weights for FY 2013 (V30)	Sum of Transfer Adjusted DRG Relative Weights for all cases in the March 2014 update of the FY 2013 MedPAR within the FY 18 applicable period. This is used to estimate the denominator in the calculation of the readmissions payment adjustment factor. 
Number of Cases for FY 2013	Number of Cases in the March 2014 update of the FY 2013 MedPAR in the FY 18 applicable period. This is used to estimate the denominator in the calculation of the readmissions payment adjustment factor. 
Number of Transfer Adjusted Cases for FY 2013	Number of Transfer Adjusted Cases in the March 2014 update of the FY 2013 MedPAR in the FY 18 applicable period. This is used to estimate the denominator in the calculation of the readmissions payment adjustment factor. 
Sum of all DRG Weights for FY 2014 (V31)	Sum of DRG Relative Weights for all cases in the March 2015 update of the FY 2014 MedPAR in the FY 18 applicable period. This is used to estimate the denominator in the calculation of the readmissions payment adjustment factor. 
Sum of all Transfer Adjusted DRG Weights for FY 2014 (V31)	Sum of Transfer Adjusted DRG Relative Weights for all cases in the March 2015 update of the FY 2014 MedPAR within the FY 18 applicable period. This is used to estimate the denominator in the calculation of the readmissions payment adjustment factor. 
Number of Cases for FY 2014	Number of Cases in the March 2015 update of the FY 2014 MedPAR in the FY 18 applicable period. This is used to estimate the denominator in the calculation of the readmissions payment adjustment factor. 
Number of Transfer Adjusted Cases for FY 2014	Number of Transfer Adjusted Cases in the March 2015 update of the FY 2014 MedPAR in the FY 18 applicable period. This is used to estimate the denominator in the calculation of the readmissions payment adjustment factor. 
Sum of all DRG Weights for FY 2015 (V32)	Sum of DRG Relative Weights for all cases in the December 2015 update of the FY 2015 MedPAR in the FY 18 applicable period. This is used to estimate the denominator in the calculation of the readmissions payment adjustment factor. 
Sum of all Transfer Adjusted DRG Weights for FY 2015 (V32)	Sum of Transfer Adjusted DRG Relative Weights for all cases in the December 2015 update of the FY 2015 MedPAR within the FY 18 applicable period. This is used to estimate the denominator in the calculation of the readmissions payment adjustment factor. 
Number of Cases for FY 2015	Number of Cases in the December 2015 update of the FY 2015 MedPAR in the FY 18 applicable period. This is used to estimate the denominator in the calculation of the readmissions payment adjustment factor. 
Number of Transfer Adjusted Cases for FY 2015	Number of Transfer Adjusted Cases in the March 2015 update of the FY 2014 MedPAR in the FY 18 applicable period. This is used to estimate the denominator in the calculation of the readmissions payment adjustment factor. 
Sum of all DRG Weights for FY 2016 (V33)	Sum of all DRG Relative Weights for all cases for FY 2016 within the FY 18 applicable period. This is used to estimate the denominator in the calculation of the readmissions payment adjustment factor. 
Sum of all Transfer Adjusted DRG Weights for FY 2016 (V33)	Sum of Transfer Adjusted DRG Relative Weights for all cases in the March 2017 update of the FY 2016 MedPAR in the FY 18 applicable period. This is used to estimate the denominator in the calculation of the readmissions payment adjustment factor. 
Number of Cases for FY 2016	Number of Cases in the March 2017 update of the FY 2016 MedPAR in the FY 18 applicable period. This is used to estimate the denominator in the calculation of the readmissions payment adjustment factor. 
Number of Transfer Adjusted Cases for FY 2016	Number of Transfer Adjusted Cases in the March 2017 update of the FY 2016 MedPAR in the FY 18 applicable period. This is used to estimate the denominator in the calculation of the readmissions payment adjustment factor. 
Footnote: The FY 18 applicable period is July 01 2013 to June 30 2016	
