Modifiers (usually 2-digits) are added to the main procedure code to signify that the procedure has been altered by a distinct factor. Modifiers are accepted by most payors. Modifiers can increase or ...
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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