The Approach Percutaneous is identified by number "3" and occupies the 5th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 03NL3
Release Left Internal Carotid Artery, Open Approach
Release Left Internal Carotid Artery, Perc Endo Approach
Release Left Internal Carotid Artery, Percutaneous Approach