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 ...
Modifier -33 is not required on services that are inherent to screening services, i.e., screening mammography. Scenario for modifier -PT A Medicare patient presents for a screening colonoscopy with a ...
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