The Approach External is identified by letter "X" and occupies the 5th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 0RQ5X
Repair Cervicothoracic Vertebral Disc, Perc Endo Approach
Repair Cervicothoracic Vertebral Disc, Percutaneous Approach
Repair Cervicothoracic Vertebral Disc, Open Approach
Repair Cervicothoracic Vertebral Disc, External Approach