 
| PCS-2023 > 0 > 00 > 009 > 009N | 
| 009 | Central Nervous System and Cranial Nerves, Drainage | |
| Info: | Drainage: Taking or letting out fluids and/or gases from a body part | |
| 009N | Drainage, Acoustic Nerve | |
| 009N0 | Open | |
| 009N00 | Drainage Device | |
| 009N00Z | Drainage of Acoustic Nerve with Drainage Device, Open Approach | |
| 009N0Z | No Device | |
| 009N0ZX | Drainage of Acoustic Nerve, Open Approach, Diagnostic | |
| 009N0ZZ | Drainage of Acoustic Nerve, Open Approach | |
| 009N3 | Percutaneous | |
| 009N30 | Drainage Device | |
| 009N30Z | Drainage of Acoustic Nerve with Drainage Device, Percutaneous Approach | |
| 009N3Z | No Device | |
| 009N3ZX | Drainage of Acoustic Nerve, Percutaneous Approach, Diagnostic | |
| 009N3ZZ | Drainage of Acoustic Nerve, Percutaneous Approach | |
| 009N4 | Percutaneous Endoscopic | |
| 009N40 | Drainage Device | |
| 009N40Z | Drainage of Acoustic Nerve with Drainage Device, Percutaneous Endoscopic Approach | |
| 009N4Z | No Device | |
| 009N4ZX | Drainage of Acoustic Nerve, Percutaneous Endoscopic Approach, Diagnostic | |
| 009N4ZZ | Drainage of Acoustic Nerve, Percutaneous Endoscopic Approach | |
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