 
| PCS-2023 > 0 > 09 > 09N > 09NT | 
| 09N | Ear, Nose, Sinus, Release | |
| Info: | Release: Freeing a body part from an abnormal physical constraint by cutting or by the use of force | |
| 09NT | Release, Frontal Sinus, Left | |
| 09NT0 | Open | |
| 09NT0Z | No Device | |
| 09NT0ZZ | Release Left Frontal Sinus, Open Approach | |
| 09NT3 | Percutaneous | |
| 09NT3Z | No Device | |
| 09NT3ZZ | Release Left Frontal Sinus, Percutaneous Approach | |
| 09NT4 | Percutaneous Endoscopic | |
| 09NT4Z | No Device | |
| 09NT4ZZ | Release Left Frontal Sinus, Percutaneous Endoscopic Approach | |
| 09NT8 | Via Natural or Artificial Opening Endoscopic | |
| 09NT8Z | No Device | |
| 09NT8ZZ | Release Left Frontal Sinus, Via Natural or Artificial Opening Endoscopic | |
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