Patient has undergone open surgery for a left total knee arthroplasty. While in the recovery room, he continued to have severe postoperative pain. The surgeon ordered a femoral block for…

Patient has undergone open surgery for a left total knee arthroplasty. While in the recovery room, he continued to have severe postoperative pain. The surgeon ordered a femoral block for postoperative pain. The anesthesiologist evaluated the patient and performed a left femoral block, which provided significant post-operative pain relief. What CPT® coding is reported?