For Medicaid reimbursement of inpatient hospital discharges, the hospital specific cost per discharge shall equal a hospital's Medicaid inpatient operating costs standardized for indirect medical education (IME) costs and variations in casemix, divided by the number of Medicaid discharges in the base year data set and adjusted for outlier reserve.
Medicaid inpatient operating costs for the base year period shall be calculated by applying the hospital-specific CCR, as determined in Section 4802, to allowed charges from the base year claims data.
Medicaid inpatient operating costs shall be standardized for IME costs by removing IME costs to determine the District-wide component of the base rate. IME costs shall be removed by dividing Medicaid operating costs for each hospital with IME costs by the IME factor for that hospital.
The IME adjustment factor for each hospital shall be calculated using the Medicare algorithm for each hospital based on the hospital cost report for the base year period.
Medicaid inpatient operating costs shall be standardized for variations in casemix by dividing Medicaid operating costs standardized for IME by the appropriate casemix adjustment factor.
The Hospital-specific cost per discharge shall be adjusted for IME and casemix and shall be reduced by a net one percent (1%) to account for five percent (5%) of the cost reserved for payment of high-cost outlier claims and four percent (4%) of the cost restored to account for the reduction in payment for low-cost outlier claims.
D.C. Mun. Regs. tit. 29, r. 29-4803