 
| PCS-2023 > 0 > 0W > 0W9 > 0W90 | 
| 0W9 | Anatomical Regions, General, Drainage | |
| Info: | Drainage: Taking or letting out fluids and/or gases from a body part | |
| 0W90 | Drainage, Head | |
| 0W900 | Open | |
| 0W9000 | Drainage Device | |
| 0W9000Z | Drainage of Head with Drainage Device, Open Approach | |
| 0W900Z | No Device | |
| 0W900ZX | Drainage of Head, Open Approach, Diagnostic | |
| 0W900ZZ | Drainage of Head, Open Approach | |
| 0W903 | Percutaneous | |
| 0W9030 | Drainage Device | |
| 0W9030Z | Drainage of Head with Drainage Device, Percutaneous Approach | |
| 0W903Z | No Device | |
| 0W903ZX | Drainage of Head, Percutaneous Approach, Diagnostic | |
| 0W903ZZ | Drainage of Head, Percutaneous Approach | |
| 0W904 | Percutaneous Endoscopic | |
| 0W9040 | Drainage Device | |
| 0W9040Z | Drainage of Head with Drainage Device, Percutaneous Endoscopic Approach | |
| 0W904Z | No Device | |
| 0W904ZX | Drainage of Head, Percutaneous Endoscopic Approach, Diagnostic | |
| 0W904ZZ | Drainage of Head, Percutaneous Endoscopic Approach | |
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