For separately reported services specifically identified as preventive, the modifier should not be used. What this means to coders The application of modifier -33 is primarily to indicate the impact ...

Medical billing and coding systems ensure that health providers get paid for their services. Learn the steps in medical billing and medical coding.

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 ...