 
| PCS-2023 > 0 > 00 > 009 > 009G | 
| 009 | Central Nervous System and Cranial Nerves, Drainage | |
| Info: | Drainage: Taking or letting out fluids and/or gases from a body part | |
| 009G | Drainage, Optic Nerve | |
| 009G0 | Open | |
| 009G00 | Drainage Device | |
| 009G00Z | Drainage of Optic Nerve with Drainage Device, Open Approach | |
| 009G0Z | No Device | |
| 009G0ZX | Drainage of Optic Nerve, Open Approach, Diagnostic | |
| 009G0ZZ | Drainage of Optic Nerve, Open Approach | |
| 009G3 | Percutaneous | |
| 009G30 | Drainage Device | |
| 009G30Z | Drainage of Optic Nerve with Drainage Device, Percutaneous Approach | |
| 009G3Z | No Device | |
| 009G3ZX | Drainage of Optic Nerve, Percutaneous Approach, Diagnostic | |
| 009G3ZZ | Drainage of Optic Nerve, Percutaneous Approach | |
| 009G4 | Percutaneous Endoscopic | |
| 009G40 | Drainage Device | |
| 009G40Z | Drainage of Optic Nerve with Drainage Device, Percutaneous Endoscopic Approach | |
| 009G4Z | No Device | |
| 009G4ZX | Drainage of Optic Nerve, Percutaneous Endoscopic Approach, Diagnostic | |
| 009G4ZZ | Drainage of Optic Nerve, Percutaneous Endoscopic Approach | |
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