The Body Part Atrial Septum is identified by number "5" and occupies the 4th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 02N5
Release Atrial Septum, Open Approach
Release Atrial Septum, Percutaneous Endoscopic Approach
Release Atrial Septum, Percutaneous Approach