CMS revised Medicare billing rules for diagnostic tests as part of its CY 2009 Physician Fee Schedule. These changes modified earlier changes made in the CY 2008 Physician Fee Schedule. Ober|Kaler's Robert E. Mazer and Mark A. Stanley present a comparison table showing the language of the longstanding rule, alongside the rule's language as amended by the CY 2008 and CY 2009 rulemakings.
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