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 0RQSX
Repair Right Carpometacarpal Joint, External Approach
Repair Right Carpometacarpal Joint, Percutaneous Approach
Repair Right Carpometacarpal Joint, Open Approach
Repair Right Carpometacarpal Joint, Perc Endo Approach