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 0RQXX
Repair Left Finger Phalangeal Joint, Perc Endo Approach
Repair Left Finger Phalangeal Joint, Percutaneous Approach
Repair Left Finger Phalangeal Joint, Open Approach
Repair Left Finger Phalangeal Joint, External Approach