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 0PQTX
Repair Right Finger Phalanx, External Approach
Repair Right Finger Phalanx, Open Approach
Repair Right Finger Phalanx, Percutaneous Approach
Repair Right Finger Phalanx, Perc Endo Approach