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 0YJ9X
Inspection of Right Lower Extremity, Open Approach
Inspection of Right Lower Extremity, Perc Endo Approach
Inspection of Right Lower Extremity, External Approach
Inspection of Right Lower Extremity, Percutaneous Approach