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 0RN40
Release Cervicothoracic Vertebral Joint, External Approach
Release Cervicothoracic Vertebral Joint, Open Approach
Release Cervicothoracic Vertebral Joint, Perc Endo Approach
Release Cervicothoracic Vertebral Joint, Perc Approach