CPT® 2021 Professional Edition is the definitive AMA-authored resource to help health care professionals correctly report and bill medical procedures and services. Providers want accurate reimbursement. Payers want efficient claims processing. Since the CPT® code set is a dynamic, ever-changing standard, an outdated code book does not suffice. Correct reporting and billing of medical procedures and services begins with CPT® 2021 Professional Edition. Only the AMA, with the help of physicians and other experts in the health care community, creates and maintains the CPT® code set. No other publisher can claim that. No other code book can provide the official guidelines to code medical services and procedures properly.