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 02NM0
Release Ventricular Septum, Percutaneous Approach
Release Ventricular Septum, Percutaneous Endoscopic Approach
Release Ventricular Septum, Open Approach