The Approach Open is identified by number "0" and occupies the 5th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 01N90
Release Lumbar Plexus, Percutaneous Approach
Release Lumbar Plexus, Open Approach
Release Lumbar Plexus, Percutaneous Endoscopic Approach