The DRG challenge is to ensure quality.
D000368:Aged; D003953:Diagnosis-Related Groups; D006801:Humans; D006278:Medicare; D009735:Nursing Homes / Q000592:standards*; D011445:Prospective Payment System; D011787:Quality of Health Care / Q000191:economics*; D012051:Reimbursement Mechanisms; D014481:United States