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 06QQ4Z
Repair Left Saphenous Vein, Open Approach
Repair Left Saphenous Vein, Percutaneous Endoscopic Approach
Repair Left Saphenous Vein, Percutaneous Approach