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 0WJLX
Inspection of Lower Back, Percutaneous Endoscopic Approach
Inspection of Lower Back, Open Approach
Inspection of Lower Back, Percutaneous Approach
Inspection of Lower Back, External Approach