What is the main function of category III codes in the Current Procedural Terminology manual?

The primary function of category III codes in the Current Procedural Terminology (CPT) manual is to describe new and emerging technologies. These codes are used to identify and report procedures and services that are not yet widely performed or accepted, which helps in tracking and documenting the usage of innovative treatments and diagnostic approaches. By utilizing category III codes, healthcare providers can effectively communicate the application of these new technologies to insurers and payers, facilitating their recognition and potential reimbursement as they progress toward widespread use.

These codes play a crucial role in staying updated with advancements in medical practices, thus helping move new methods from experimental phases to standard care options. In this context, the other options do not accurately reflect the specific purpose of category III codes, as they relate to well-established procedures or incentives that are not part of the unique function of this coding category.