The Approach Open is identified by number "0" and occupies the 5th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 00QJ0
Repair Trochlear Nerve, Percutaneous Approach
Repair Trochlear Nerve, Open Approach
Repair Trochlear Nerve, Percutaneous Endoscopic Approach