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 0YJKX
Inspection of Right Ankle Region, Open Approach
Inspection of Right Ankle Region, Percutaneous Approach
Inspection of Right Ankle Region, Perc Endo Approach
Inspection of Right Ankle Region, External Approach