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 02C50
Extirpation of Matter from Atrial Septum, Open Approach
Extirpation of Matter from Atrial Septum, Perc Approach
Extirpation of Matter from Atrial Septum, Perc Endo Approach