Fusion T-lum Jt w IFD Cust Dsin, Ant Appr A Col, Open

This code captures an open surgical fusion of the thoracolumbar vertebral joint (T12-L1) using a patient-specific interbody fusion device that has been custom-fabricated based on preoperative virtual planning and anatomical imaging data. The device is placed via an anterior approach targeting the anterior column, distinguishing it from posterior or lateral column fusion techniques. The custom-made designation reflects advanced manufacturing (typically 3D-printed implants) designed to conform precisely to the individual patient's vertebral anatomy.

This code applies when a surgeon performs an open anterior thoracolumbar fusion at the T12-L1 level using a custom-designed interbody cage — commonly indicated for severe deformity correction, revision surgery with complex anatomy, or cases where standard off-the-shelf implants are insufficient. Supporting documentation should include operative notes specifying the anterior open approach, confirmation of the custom/patient-specific implant (including manufacturer records or implant logs), and imaging used for virtual surgical planning. This code is specific to the T12-L1 joint; adjacent-level fusions require separate codes.

• Device value distinction is critical: Do not confuse the custom-made anatomically designed device (value "E") with a standard synthetic substitute or generic interbody fusion device — implant documentation must explicitly support the custom-fabricated designation.
• Approach and column specificity: Verify that both the anterior approach and anterior column are documented; a posterior approach to the thoracolumbar joint with an interbody device maps to a different code entirely.
• Multiple-level fusions: If additional vertebral levels are fused in the same operative session, each joint requires its own code; do not assume this single code captures adjacent thoracic or lumbar levels.