| 0N9700Z | Drainage of Occipital Bone with Drainage Device, Open Approach |
| 0N970ZX | Drainage of Occipital Bone, Open Approach, Diagnostic |
| 0N970ZZ | Drainage of Occipital Bone, Open Approach |
| 0N9730Z | Drainage of Occipital Bone with Drainage Device, Percutaneous Approach |
| 0N973ZX | Drainage of Occipital Bone, Percutaneous Approach, Diagnostic |
| 0N973ZZ | Drainage of Occipital Bone, Percutaneous Approach |
| 0N9740Z | Drainage of Occipital Bone with Drainage Device, Percutaneous Endoscopic Approach |
| 0N974ZX | Drainage of Occipital Bone, Percutaneous Endoscopic Approach, Diagnostic |
