In the CPT index, how are main terms printed?

In the CPT index, main terms are printed in boldface. This formatting choice serves an important purpose: it helps to distinguish main terms from the modifiers or additional descriptive terms that follow. By using boldface for main terms, coders can quickly identify the principal focus of a code entry when searching for the appropriate code for specific medical procedures or services. This visual cue enhances readability and efficiency, allowing coders to navigate the index with greater ease.