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 0XQ4X
Repair Right Axilla, Open Approach
Repair Right Axilla, Percutaneous Endoscopic Approach
Repair Right Axilla, Percutaneous Approach
Repair Right Axilla, External Approach