The majority of CPT codes used by physical therapists belong to which series?

• A. 97000 series
• B. 80000 series
• C. 10000 series
• D. 60000 series

Answer: (A)

The main idea is how CPT codes are organized by the type of service. Physical therapy focuses on rehabilitation procedures, treatments, and modalities, so most PT-related codes sit in the physical medicine and rehabilitation range. That 97000 series specifically covers the therapeutic interventions PTs perform—therapeutic exercises, manual therapy, gait and functional training, neuromuscular reeducation, and various modalities. Because these are the core activities of physical therapy, the majority of codes you’ll use in PT billing come from this series. Other CPT series cover areas like laboratory tests (80000s) or surgical procedures (10000s and 60000s), which aren’t the typical PT coding domains.