E/M coding and the OIG: not so reliable after all.
Asplin
Brent R
BR
D004635:Emergency Medicine / Q000191:economics*; D005607:Fraud; D006801:Humans; D016347:Medical Records Systems, Computerized / Q000145:classification*; D006278:Medicare / Q000191:economics*; D015203:Reproducibility of Results; D009626:Terminology as Topic; D014481:United States