The Approach Percutaneous is identified by number "3" and occupies the 5th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 01N23
Release Phrenic Nerve, Percutaneous Endoscopic Approach
Release Phrenic Nerve, Percutaneous Approach
Release Phrenic Nerve, Open Approach