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 0QQSX
Repair Coccyx, Percutaneous Approach
Repair Coccyx, Percutaneous Endoscopic Approach
Repair Coccyx, Open Approach
Repair Coccyx, External Approach