The three parts of the cpt manual are the main text, the appendices, and the alphabetic index

True.

Explanation:

CPT ( Current procedure terminology) may be defined as the set of the medical code that are maintained by the American Medical Association. The CPT code the surgical, medical and diagnostic service.

These codes are generally designed to communicate within the coders, physicians and patients. The three different part included in the CPT manual are alphabetic index, main text and the appendices. These codes are quite useful in the medical field.

Thus, the answer is true.