 
| PCS-2023 > 0 > 09 > 091 | 
| 091 | Ear, Nose, Sinus, Bypass | |
| Info: | Bypass: Altering the route of passage of the contents of a tubular body part | |
| Info: | 091D Bypass, Inner Ear, Right  091E Bypass, Inner Ear, Left  | |
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