| Section | 0 | Medical and Surgical |
| Body System | N | Head and Facial Bones |
| Operation | W | Revision: Correcting, to the extent possible, a portion of a malfunctioning device or the position of a displaced device |
| Body Part 0 Skull |
Approach 0 Open |
Device 0 Drainage Device 4 Internal Fixation Device 5 External Fixation Device 7 Autologous Tissue Substitute J Synthetic Substitute K Nonautologous Tissue Substitute M Bone Growth Stimulator N Neurostimulator Generator S Hearing Device |
Qualifier Z No Qualifier |
| Body Part 0 Skull |
Approach 3 Percutaneous 4 Percutaneous Endoscopic X External |
Device 0 Drainage Device 4 Internal Fixation Device 5 External Fixation Device 7 Autologous Tissue Substitute J Synthetic Substitute K Nonautologous Tissue Substitute M Bone Growth Stimulator S Hearing Device |
Qualifier Z No Qualifier |
| Body Part B Nasal Bone W Facial Bone |
Approach 0 Open 3 Percutaneous 4 Percutaneous Endoscopic X External |
Device 0 Drainage Device 4 Internal Fixation Device 7 Autologous Tissue Substitute J Synthetic Substitute K Nonautologous Tissue Substitute M Bone Growth Stimulator |
Qualifier Z No Qualifier |