Category I CPT® Code Granted for an Implantable Shock Absorber for Knee Osteoarthritis. The Arthroscopy Association of North America (AANA), an international professional organization of more than 5,000 orthopedic surgeons, today announced an important milestone to expand access for knee osteoarthritis (OA) patients. The American Medical Association (AMA) CPT Editorial Panel has established a Category […]