The Device No Device is identified by letter "Z" and occupies the 6th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 06NQ4Z
Release Left Saphenous Vein, Percutaneous Approach
Release Left Saphenous Vein, Perc Endo Approach
Release Left Saphenous Vein, Open Approach