What symbols are located throughout the CPT and what do they identify?

In the Current Procedural Terminology (CPT) code set, various symbols are used to convey specific information about procedures and services. For example, a bullet (•) indicates a new code, while a triangle (▲) signifies a revised code. A plus sign (+) denotes an add-on code that must be reported in conjunction with a primary procedure. Additionally, a star (*) indicates a code that has specific guidelines or instructions associated with it.