The Device No Device is identified by letter "Z" and occupies the 6th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 02NM4Z
Release Ventricular Septum, Percutaneous Endoscopic Approach
Release Ventricular Septum, Percutaneous Approach
Release Ventricular Septum, Open Approach