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 02N20
Release Coronary Artery, Three Arteries, Open Approach
Release Coronary Artery, Three Arteries, Perc Approach
Release Coronary Artery, Three Arteries, Perc Endo Approach