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 04NF0
Release Left Internal Iliac Artery, Open Approach
Release Left Internal Iliac Artery, Percutaneous Approach
Release Left Internal Iliac Artery, Perc Endo Approach