What do category II codes in the CPT codebook represent?

Category II codes in the CPT codebook are specifically designed to represent performance measures. These codes facilitate the collection of data for performance measurement as part of quality improvement initiatives within healthcare. They are often used to track the effectiveness of care provided to patients and can assist in improving the quality of healthcare services.

Because these codes are not intended for billing purposes, they serve a different function compared to other categories of codes in the CPT system, such as Category I codes, which are used for reporting medical services and procedures, or Category III codes, which represent emerging technologies and procedures. Using Category II codes allows healthcare providers to report on specific aspects of care and outcomes related to performance measures without affecting reimbursement.