CPT® Code 64448

Injection(s), anesthetic agent(s) and/or steroid; femoral nerve, continuous infusion by catheter (including catheter placement), including imaging guidance, when performed

The CPT® Code 64448 refers to the procedure of injecting anesthetic agents and/or steroids into the femoral nerve through a continuous infusion method via a catheter. This procedure is specifically designed to provide pain relief by blocking the femoral nerve, which is located in the groin area and is responsible for sensation and movement in the thigh. The process begins with the preparation of the patient's skin, where a local anesthetic is applied to minimize discomfort during the procedure. The injection site is carefully marked to ensure accuracy. A specialized needle is then inserted through the skin into the femoral nerve sheath, which is the protective covering surrounding the nerve. The correct placement of the needle is confirmed using techniques such as electrical nerve stimulation or imaging guidance, which may include ultrasound. Once the needle is properly positioned, aspiration is performed to check for blood return, indicating that the needle is not in a blood vessel. Following this, a catheter is advanced into the femoral nerve sheath, allowing for the administration of a long-acting local anesthetic, such as bupivacaine, often combined with epinephrine to prolong the effect. Continuous infusion of the anesthetic is initiated to maintain pain relief over an extended period. This procedure is particularly beneficial for patients requiring prolonged analgesia, such as those undergoing surgery on the lower extremities or those with chronic pain conditions affecting the thigh region.