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 03Q20
Repair Innominate Artery, Open Approach
Repair Innominate Artery, Percutaneous Endoscopic Approach
Repair Innominate Artery, Percutaneous Approach