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 02Q30
Repair Coronary Artery, Four or More Arteries, Open Approach
Repair Coronary Artery, Four or More Arteries, Perc Approach
Repair 4+ Cor Art, Perc Endo Approach