CPT® Code 27405

The procedure described by CPT® Code 27405 pertains to the primary repair of torn ligaments and/or the joint capsule in the knee, specifically focusing on the collateral ligaments. The knee joint is stabilized by four major ligaments: the anterior cruciate ligament (ACL), the posterior cruciate ligament (PCL), the medial collateral ligament (MCL), and the lateral collateral ligament (LCL). The ACL and PCL are located centrally within the knee joint and are crucial for providing rotational stability, while the MCL and LCL are positioned on the inner and outer aspects of the knee, respectively. Injuries to these ligaments can result in significant instability, with the knee potentially buckling under stress. In cases where the MCL or LCL is torn, surgical intervention may be necessary to restore stability. The procedure involves making a skin incision over the affected area of the knee, followed by dissection of the soft tissues to expose the damaged ligament. The torn ligament is then meticulously inspected and repaired using sutures, with the option of employing suture anchors to enhance the repair's strength. If the injury involves the ACL or PCL, the procedure requires incising the joint capsule to allow for a thorough inspection and repair of the affected ligament, along with any associated capsular tears. It is important to note that the codes associated with these procedures are strictly for primary repairs, and specific codes are designated for different types of ligament injuries, ensuring accurate coding and billing practices.