What does Appendix A of the CPT contain?

Appendix A of the CPT (Current Procedural Terminology) contains a comprehensive list of CPT modifiers along with their descriptions. Modifiers provide additional information about a procedure or service performed by a healthcare provider, which can affect how the procedure is billed and reimbursed. They help to clarify the context of the procedures, indicating aspects such as whether a procedure was altered in some way without changing its definition or code.

The significance of this appendix lies in its role in ensuring clear communication between healthcare providers and payers about the specific services rendered. By using modifiers accurately, medical coders can ensure that claims are processed correctly, helping to avoid denials and delays in payment. Understanding the use of modifiers is essential for compliance with coding guidelines and maximizing revenue cycle efficiency.

The other options reflect different types of information commonly found in medical coding references, but they do not specifically pertain to the content of Appendix A in the CPT.