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 02N90
Release Chordae Tendineae, Open Approach
Release Chordae Tendineae, Percutaneous Approach
Release Chordae Tendineae, Percutaneous Endoscopic Approach