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 0SJ0X
Inspection of Lumbar Vertebral Joint, Perc Endo Approach
Inspection of Lumbar Vertebral Joint, External Approach
Inspection of Lumbar Vertebral Joint, Open Approach
Inspection of Lumbar Vertebral Joint, Percutaneous Approach