CPT® Code 27111

The procedure described by CPT® Code 27111 involves the transfer of the iliopsoas muscle to the femoral neck. This surgical intervention is primarily indicated for the treatment of congenital hip dislocation or paralysis affecting the hip adductor muscles. The iliopsoas muscle, which plays a crucial role in hip flexion and stabilization, is approached through an anterolateral incision that is strategically placed over its insertion site on the lesser trochanter of the femur. During the procedure, the iliopsoas is carefully divided at its insertion point, allowing for the creation of a notch in the wing of the ilium, situated between the anterior superior and anterior inferior iliac spines. This notch facilitates the passage of the iliopsoas muscle through the ilium and subsequently through a split made in the gluteus medius and minimus muscles. The final step involves securing the iliopsoas muscle to the femoral neck, which is essential for restoring function and stability to the hip joint. It is important to note that if the iliopsoas is transferred to the greater trochanter instead, CPT® Code 27110 should be used. This distinction is critical for accurate coding and billing purposes.