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 0RJ1X
Inspection of Cervical Vertebral Joint, Perc Endo Approach
Inspection of Cervical Vertebral Joint, Perc Approach
Inspection of Cervical Vertebral Joint, External Approach
Inspection of Cervical Vertebral Joint, Open Approach