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 031G0
Bypass Intracran Art to Intracran Art w Synth Sub, Open
Bypass Intracran Art to Intracran Art w Autol Vn, Open
Bypass Intracran Art to Intracran Art w Autol Art, Open
Bypass Intracran Art to Intracran Art w Nonaut Sub, Open
Bypass Intracranial Artery to Intracran Art, Open Approach