New EKG interpretation rules implemented Jan. 1.
D003955:Diagnostic Tests, Routine / Q000191:economics; D004562:Electrocardiography / Q000191:economics*; D006801:Humans; D016345:Medicare Part B / Q000331:legislation & jurisprudence*; D011907:Rate Setting and Review / Q000331:legislation & jurisprudence; D015895:Relative Value Scales; D014481:United States