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 0YJMX
Inspection of Right Foot, Percutaneous Approach
Inspection of Right Foot, Open Approach
Inspection of Right Foot, Percutaneous Endoscopic Approach
Inspection of Right Foot, External Approach