Medical necessity denials: prevention pays off.
D000368:Aged; D005377:Financial Management, Hospital; D006301:Health Services Needs and Demand / Q000191:economics; D006751:Hospital Information Systems; D006801:Humans; D007345:Insurance Claim Review; D006278:Medicare; D012984:Software; D014481:United States; D019564:Unnecessary Procedures / Q000191:economics