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 0XQNX
Repair Right Index Finger, Open Approach
Repair Right Index Finger, Percutaneous Approach
Repair Right Index Finger, Percutaneous Endoscopic Approach
Repair Right Index Finger, External Approach