| Section | 0 | Medical and Surgical |
| Body System | Q | Lower Bones |
| Operation | H | Insertion: Putting in a nonbiological appliance that monitors, assists, performs, or prevents a physiological function but does not physically take the place of a body part |
| Body Part 0 Lumbar Vertebra 1 Sacrum 2 Pelvic Bone, Right 3 Pelvic Bone, Left 4 Acetabulum, Right 5 Acetabulum, Left D Patella, Right F Patella, Left L Tarsal, Right M Tarsal, Left N Metatarsal, Right P Metatarsal, Left Q Toe Phalanx, Right R Toe Phalanx, Left S Coccyx |
Approach 0 Open 3 Percutaneous 4 Percutaneous Endoscopic |
Device 4 Internal Fixation Device 5 External Fixation Device |
Qualifier Z No Qualifier |
| Body Part 6 Upper Femur, Right 7 Upper Femur, Left 8 Femoral Shaft, Right 9 Femoral Shaft, Left B Lower Femur, Right C Lower Femur, Left G Tibia, Right H Tibia, Left J Fibula, Right K Fibula, Left |
Approach 0 Open 3 Percutaneous 4 Percutaneous Endoscopic |
Device 4 Internal Fixation Device 5 External Fixation Device 6 Internal Fixation Device, Intramedullary 8 External Fixation Device, Limb Lengthening B External Fixation Device, Monoplanar C External Fixation Device, Ring D External Fixation Device, Hybrid |
Qualifier Z No Qualifier |
| Body Part Y Lower Bone |
Approach 0 Open 3 Percutaneous 4 Percutaneous Endoscopic |
Device M Bone Growth Stimulator |
Qualifier Z No Qualifier |