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 0YQ9X
Repair Right Lower Extremity, Open Approach
Repair Right Lower Extremity, External Approach
Repair Right Lower Extremity, Percutaneous Approach
Repair Right Lower Extremity, Perc Endo Approach