0YW: Revision — Anatomical Regions, Lower ExtremitiesCorrecting, to the extent possible, a portion of a malfunctioning device or the position of a displaced device
9 Lower Extremity, Right; B Lower Extremity, Left0 Open; 3 Percutaneous; 4 Percutaneous Endoscopic; X External0 Drainage Device; 3 Infusion Device; 7 Autologous Tissue Substitute; J Synthetic Substitute; K Nonautologous Tissue Substitute; Y Other DeviceZ No Qualifier