Which of the following best describes the primary use of CPT codes?

The primary use of CPT codes is billing for medical services provided. These codes are a standardized set of medical terms and codes that communicate to payers what services were performed by healthcare providers. This standardized coding system allows for consistent documentation and billing across medical practices, ensuring that providers are reimbursed appropriately for their services.

CPT codes encompass a broad range of medical procedures, including evaluation and management services, surgical procedures, and various diagnostic and therapeutic interventions. By employing these codes, healthcare providers can submit claims to insurance companies and receive payment for the services rendered to patients.

While the other choices involve important aspects of healthcare, they do not align with the primary function of CPT codes. For example, classifying diseases is primarily done using the International Classification of Diseases (ICD) codes, and tracking patient outcomes often involves other data collection measures rather than specific procedural codes. Developing new medical procedures is typically an innovation process that does not directly relate to the billing and procedural documentation that CPT codes provide.