D.C. Mun. Regs. tit. 29, § 4806
4806.1 For Medicaid reimbursement of inpatient hospital discharges occurring on or after October 1, 2014, DHCF shall use hospital-Specific Relative Value (HSRV) version 31 national weights for APR-DRGs. The HSRV method adjusts for differences in cost-to-charge ratios (CCR) among hospitals nationwide.
4806.2 Each DRG assignment shall reflect a severity of illness (SOI) in its associated relative weight. Relative weights are updated biennially at the time the APR-DRG grouper version is updated. The annual APR-DRG documentation from 3M™ describes the changes made each year.
SOURCE: Final Rulemaking published at 45 DCR 4141, 4147 (June 26, 1998); as amended by Final Rulemaking published at 46 DCR 8271, 8273 (October 15, 1999); as amended by Emergency and Proposed Rulemaking published at 57 DCR 2691 (March 26, 2010) [EXPIRED]; as amended by Emergency and Proposed Rulemaking published at 57 DCR 6837 (July 10, 2010) [EXPIRED]; as amended by Final Rulemaking published at 58 DCR 4323, 4328 (May 20, 2011); as amended by Final Rulemaking published at 59 DCR 15078 (December 28, 2012); as amended by Final Rulemaking published at 63 DCR 5234 (April 8, 2016).