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 04N00
Release Abdominal Aorta, Percutaneous Approach
Release Abdominal Aorta, Percutaneous Endoscopic Approach
Release Abdominal Aorta, Open Approach