Where in the CPT manual can information about modifiers be found?

Information about modifiers can be found in Appendix A of the CPT manual. This appendix provides a comprehensive list of all the modifiers recognized by the Current Procedural Terminology. Each modifier is defined to help coders understand its appropriate usage and application in coding procedures.

Modifiers are essential for providing additional detail to the services rendered, including indicating whether a service was altered in some way without changing its specific definition or code. This might include circumstances such as a procedure performed on a different limb or a repeat procedure on the same day.

While the index, guidelines section, and table of contents contain useful information about the CPT codes and various coding rules, they do not specifically consolidate the detailed definitions and applications of modifiers in one location as Appendix A does. Hence, Appendix A serves as the definitive resource for understanding modifiers within the CPT manual.