The new outpatient CPT modifier 33 is the “most noteworthy” change in CMS’ Outpatient Code Editor Version 12.1, effective April 4, according to an AAPC report. Modifier 33 Preventive services is ...
CMS has added 13 new modifiers and extended the one of one, as indicated in the January 2011 Integrated Outpatient Code Editor. Most of the new modifiers went into effect Jan. 1, but one new modifier ...
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