Which component does CPT modifier 26 indicate in a service?

• A. The professional component of a service
• B. The technical component of a service
• C. Both components of a service
• D. A separate service performed

Answer: (A)

Modifier 26 designates the professional component of a service—the portion performed by the physician, such as interpretation, analysis, or decision-making. The technical component, handled by the facility with its equipment and technologists, is billed separately using modifier TC. A separate service performed is not indicated by this modifier. So, the correct interpretation is that the modifier 26 points to the physician’s professional contribution to the service.