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 06NP0
Release Right Saphenous Vein, Perc Endo Approach
Release Right Saphenous Vein, Open Approach
Release Right Saphenous Vein, Percutaneous Approach