title: Refined DRGs: an add-on system identifying groups of patients with similar resource usage profiles.
authors.affiliation: American Hospital Association, Chicago, IL.
authors.forename: S
authors.initials: S
authors.lastname: Metzler
mesh_terms: D014487:Centers for Medicare and Medicaid Services, U.S.; D015897:Comorbidity; D003953:Diagnosis-Related Groups; D006295:Health Resources / Q000706:statistics & numerical data*; D008499:Medical Records / Q000145:classification*; D008722:Methods; D008962:Models, Theoretical; D011445:Prospective Payment System; D012720:Severity of Illness Index; D013514:Surgical Procedures, Operative / Q000145:classification; D014481:United States