FY 2018 IPPS Final Rule: Hospital Readmissions Reduction Program- Supplemental Data	
	
Variable	Description
PROV	Medicare Provider Number or CCN
FY 2018 Final Readmissions Adjustment Factor	"Final Readmissions Adjustment Factor is based on excess readmission ratios with a performance period in the FY 18 applicable period.  Excess readmission ratios calculated based on policies presented in the FY 2018 IPPS Final Rule.  Methodology to calculate the readmission adjustment factor is presented in the FY 2018 IPPS Final Rule and is based on 6 readmissions measures: Acute Myocardial Infarction Heart Failure, Pneumonia, Chronic Obstructive Pulmonary Disease, Total Hip/Total Knee Arthroplasty, and Coronary Artery Bypass Graft. Data source to calculate readmission adjustment factor is MedPAR.  For the FY 2018 final rule, a hospital can have a readmission payment adjustment factor that is higher of a ratio or 0.9700. Only IPPS hospitals in the Hospital Readmissions Reduction Program (Puerto Rico and Maryland hospitals are excluded) from the Program."
Number of Pneumonia Cases	Number of Pneumonia admissions based on the FY 18 applicable period. Admissions for the condition are identified based on the refinement to the original methodology finalized in the FY 2016 IPPS Final Rule (80 FR 49532). Data source to identify admissions is the Standard Analytic File (SAF). 
Excess Readmission Ratio for Pneumonia	Excess Readmission Ratio based on the refinement to the original methodology finalized in the FY 2016 IPPS Final Rule (80 FR 49532). Hospitals with fewer than 25 cases do not have an excess readmission ratio for that condition. Hospitals in Puerto Rico are not included.
Number of Heart Failure Cases	Number of Heart Failure admissions based on the FY 18 applicable period.  Admissions for the condition are identified based on methodology finalized in the FY 2012 IPPS Final Rule (76 FR 51666). Data source to identify admissions is the Standard Analytic File (SAF).
Excess Readmission Ratio for Heart Failure	Excess Readmission Ratio for Heart Failure based on methodology finalized in the FY 2012 IPPS Final Rule (76 FR 51666).  Hospitals with fewer than 25 cases do not have an excess readmission ratio for that condition. Hospitals in Puerto Rico are not included.
Number of Acute Myocardial Infarction Cases	Number of acute myocardial infarction (AMI) admissions  based on the FY 18 applicable period.  Admissions for the condition are identified based on methodology finalized in the FY 2012 IPPS Final Rule (76 FR 51666). Data source to identify admissions is the Standard Analytic File (SAF).
Acute Myocardial Infarction Excess Readmission Ratio	Excess Readmission Ratio for Acute Myocardial Infarction based on methodology finalized in the FY 2012 IPPS Final Rule (76 FR 51666). Hospitals with fewer than 25 cases do not have an excess readmission ratio for that condition.  Hospitals in Puerto Rico are not included.
Number of COPD Cases	Number of Chronic Obstructive Pulmonary Disease  admissions based on the FY 18 applicable period.  Admissions for the condition are identified based on methodology finalized in the FY 2014 IPPS Final Rule and in the FY 2015 IPPS Final Rule. Data source to identify admissions is the Standard Analytic File (SAF).
COPD  Excess Readmission Ratio	Excess Readmission Ratio for Chronic Obstructive Pulmonary Disease  based on methodology finalized in the FY 2014 IPPS Final Rule and in the FY 2015 IPPS Final Rule. Hospitals with fewer than 25 cases do not have an excess readmission ratio for that condition.  Hospitals in Puerto Rico are not included.
Number of Total Hip/Total Knee Arthroplasty  Cases	Number of Total Hip/Total Knee Arthroplasty  (TKA/THA) admissions based on the FY 18 applicable period. Admissions for the condition are identified based on methodology finalized in the FY 2014 IPPS Final Rule and in the FY 2015 IPPS Final Rule. Data source to identify admissions is the Standard Analytic File (SAF).
Total Hip/Total Knee Arthroplasty  Excess Readmission Ratio	Excess Readmission Ratio for Total Hip/Total Knee Arthroplasty  based on methodology finalized in the FY 2014 IPPS Final Rule  and in the FY 2015 IPPS Final Rule. Hospitals with fewer than 25 cases do not have an excess readmission ratio for that condition.  Hospitals in Puerto Rico are not included.
Number of CABG Cases	Number of Coronary Artery Bypass Graft admissions based on the FY 18 applicable period.  Admissions for the condition are identified based on methodology finalized in the FY 2015 IPPS Final Rule (79 FR 50033). Data source to identify admissions is the Standard Analytic File (SAF).
CABG  Excess Readmission Ratio	Excess Readmission Ratio for Coronary Artery Bypass Graft  based on methodology finalized in the FY 2015 IPPS Final Rule (79 FR 50033). Hospitals with fewer than 25 cases do not have an excess readmission ratio for that condition.  Hospitals in Puerto Rico are not included.
Footnote: The FY 18 applicable period is July 01 2013 to June 30 2016	
