Estimating hospital costs by diagnosis group.
D054598:Blue Cross Blue Shield Insurance Plans / Q000191:economics; D003365:Costs and Cost Analysis; D003933:Diagnosis; D006760:Hospitalization / Q000191:economics*; D006801:Humans; D008824:Michigan; D010361:Patients / Q000145:classification; D012040:Regional Health Planning; D012051:Reimbursement Mechanisms