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 00SG0
Reposition Optic Nerve, Percutaneous Approach
Reposition Optic Nerve, Percutaneous Endoscopic Approach
Reposition Optic Nerve, Open Approach