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 03Q40
Repair Left Subclavian Artery, Perc Endo Approach
Repair Left Subclavian Artery, Open Approach
Repair Left Subclavian Artery, Percutaneous Approach