title: Case mix definition by diagnosis-related groups.
mesh_terms: D000704:Analysis of Variance; D002017:Budgets; D003133:Commission on Professional and Hospital Activities; D003363:Cost Control; D003933:Diagnosis; D004194:Disease / Q000145:classification; D006761:Hospitals / Q000706:statistics & numerical data*; D006801:Humans; D007902:Length of Stay; D008962:Models, Theoretical; D010361:Patients / Q000145:classification*; D011445:Prospective Payment System; D012040:Regional Health Planning; D014481:United States; D014600:Utilization Review