 
| PCS-2023 > 0 > 01 > 01N > 01NK | 
| 01N | Peripheral Nervous System, Release | |
| Info: | Release: Freeing a body part from an abnormal physical constraint by cutting or by the use of force | |
| 01NK | Release, Head and Neck Sympathetic Nerve | |
| 01NK0 | Open | |
| 01NK0Z | No Device | |
| 01NK0ZZ | Release Head and Neck Sympathetic Nerve, Open Approach | |
| 01NK3 | Percutaneous | |
| 01NK3Z | No Device | |
| 01NK3ZZ | Release Head and Neck Sympathetic Nerve, Percutaneous Approach | |
| 01NK4 | Percutaneous Endoscopic | |
| 01NK4Z | No Device | |
| 01NK4ZZ | Release Head and Neck Sympathetic Nerve, Percutaneous Endoscopic Approach | |
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