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 0XQFX
Repair Left Lower Arm, Percutaneous Approach
Repair Left Lower Arm, Open Approach
Repair Left Lower Arm, External Approach
Repair Left Lower Arm, Percutaneous Endoscopic Approach