Jessica Edmiston is manager, coding, for National Medical Billing Services. Q: Concerning screening colonoscopies, our ambulatory surgery center is having no problem using the -PT modifier for ...

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 ...

On January 1, 2015, the Centers for Medicare & Medicaid Service (CMS) introduced 4 Healthcare Common Procedure Coding System modifiers, known collectively as the - X(EPSU) modifiers, as a subset of ...