Current Procedural Terminology (CPT) is a standardized coding system used in the United States to describe medical, surgical, and diagnostic services. Developed by the American Medical Association (AMA), CPT codes help healthcare providers communicate about procedures and services efficiently, ensuring accurate billing and documentation. CPT codes are organized into three categories: Category I for procedures and services, Category II for performance measures, and Category III for emerging technologies. These codes are essential for insurance claims processing and help maintain consistency in healthcare reporting across various settings.