 
| PCS-2023 > 0 > 09 > 09N > 09N4 | 
| 09N | Ear, Nose, Sinus, Release | |
| Info: | Release: Freeing a body part from an abnormal physical constraint by cutting or by the use of force | |
| 09N4 | Release, External Auditory Canal, Left | |
| 09N40 | Open | |
| 09N40Z | No Device | |
| 09N40ZZ | Release Left External Auditory Canal, Open Approach | |
| 09N43 | Percutaneous | |
| 09N43Z | No Device | |
| 09N43ZZ | Release Left External Auditory Canal, Percutaneous Approach | |
| 09N44 | Percutaneous Endoscopic | |
| 09N44Z | No Device | |
| 09N44ZZ | Release Left External Auditory Canal, Percutaneous Endoscopic Approach | |
| 09N47 | Via Natural or Artificial Opening | |
| 09N47Z | No Device | |
| 09N47ZZ | Release Left External Auditory Canal, Via Natural or Artificial Opening | |
| 09N48 | Via Natural or Artificial Opening Endoscopic | |
| 09N48Z | No Device | |
| 09N48ZZ | Release Left External Auditory Canal, Via Natural or Artificial Opening Endoscopic | |
| 09N4X | External | |
| 09N4XZ | No Device | |
| 09N4XZZ | Release Left External Auditory Canal, External Approach | |
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