| Section | 0 | Medical and Surgical |
| Body System | Y | Anatomical Regions, Lower Extremities |
| Operation | W | Revision: Correcting, to the extent possible, a portion of a malfunctioning device or the position of a displaced device |
| Body Part 9 Lower Extremity, Right B Lower Extremity, Left |
Approach 0 Open 3 Percutaneous 4 Percutaneous Endoscopic X External |
Device 0 Drainage Device 3 Infusion Device 7 Autologous Tissue Substitute J Synthetic Substitute K Nonautologous Tissue Substitute Y Other Device |
Qualifier Z No Qualifier |