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 0YQFX
Repair Right Knee Region, Percutaneous Endoscopic Approach
Repair Right Knee Region, Percutaneous Approach
Repair Right Knee Region, Open Approach
Repair Right Knee Region, External Approach