As used in this section and in § 412.154 , the following definitions apply:
Aggregate payments for all discharges is, for a hospital for the applicable period, the sum of the base operating DRG payment amounts for all discharges for all conditions from such hospital for such applicable period.
Aggregate payments for excess readmissions is, for a hospital for the applicable period, the sum, for the applicable conditions, of the product for each applicable condition of:
Applicable condition is a condition or procedure selected by the Secretary-
Applicable period is, with respect to a fiscal year, the 3-year period (specified by the Secretary) from which data are collected in order to calculate excess readmission ratios and adjustments under the Hospital Readmissions Reduction Program.
Applicable period for dual eligibility is the 3-year data period corresponding to the applicable period for the Hospital Readmissions Reduction Program, unless otherwise established by the Secretary.
Base operating DRG payment amount is the wage-adjusted DRG operating payment plus any applicable new technology add-on payments under subpart F of this part. This amount is determined without regard to any payment adjustments under the Hospital Value-Based Purchasing Program, as specified under § 412.162 . This amount does not include any additional payments for indirect medical education under § 412.105 , the treatment of a disproportionate share of low-income patients under § 412.106 , outliers under subpart F of this part, and a low volume of discharges under § 412.101 . With respect to a sole community hospital that receives payments under § 412.92(d) this amount also does not include the difference between the hospital-specific payment rate and the Federal payment rate determined under subpart D of this part. With respect to a Medicare-dependent, small rural hospital that receives payments under § 412.108(c) , this amount includes the difference between the hospital-specific payment rate and the Federal payment rate determined under subpart D of this part. With respect to a hospital that is paid under section 1814(b)(3) of the Act, this amount is an amount equal to the wage-adjusted DRG payment amount plus new technology payments that would be paid to such hospitals, absent the provisions of section 1814(b)(3) of the Act.
Dual-eligible -
Excess readmissions ratio is a hospital-specific ratio for each applicable condition for an applicable period, which is the ratio (but not less than 1.0) of risk-adjusted readmissions based on actual readmissions for an applicable hospital for each applicable condition to the risk-adjusted expected readmissions for the applicable hospital for the applicable condition.
Floor adjustment factor is the value that the readmissions adjustment factor cannot be less than for a given fiscal year. The floor adjustment factor is set at 0.99 for FY 2013, 0.98 for FY 2014, and 0.97 for FY 2015 and subsequent fiscal years.
Proportion of dual-eligibles is the number of dual-eligible patients among all Medicare Fee-for-Service and Medicare Advantage stays during the applicable period.
Readmission is the case of an individual who is discharged from an applicable hospital, the admission of the individual to the same or another applicable hospital within a time period of 30 days from the date of such discharge.
Readmissions adjustment factor is equal to the greater of:
Wage-adjusted DRG operating payment is the applicable average standardized amount adjusted for resource utilization by the applicable MS-DRG relative weight and adjusted for differences in geographic costs by the applicable area wage index (and by the applicable cost-of-living adjustment for hospitals located in Alaska and Hawaii). This amount includes an applicable payment adjustment for transfers under § 412.4(f) .
42 C.F.R. §412.152