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 0SJCX
Inspection of Right Knee Joint, Percutaneous Approach
Inspection of Right Knee Joint, Perc Endo Approach
Inspection of Right Knee Joint, External Approach
Inspection of Right Knee Joint, Open Approach