Fusion 2-4 L Jt w Cust Intbd Fus Dev, Open, New Tech 7

This code describes a surgical procedure to permanently join two or more vertebrae in the lumbar (lower back) region. It specifically involves the insertion of a custom-fabricated, anatomically contoured interbody fusion device, designed to fit the patient's unique spinal anatomy, to promote bone growth between the vertebral bodies. This is performed via an open surgical incision.

This code is used when a patient undergoes a lumbar spinal fusion for conditions such as severe degenerative disc disease, spondylolisthesis, or spinal instability, where a standard, off-the-shelf interbody device is not suitable. The key differentiator is the use of a patient-specific, custom-made interbody fusion device, indicating a novel or advanced technology.

• Ensure documentation clearly specifies "custom-made" or "anatomically designed" interbody fusion device and that it's for two or more lumbar vertebral joints.