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 00CL0
Extirpation of Matter from Abducen Nrv, Perc Endo Approach
Extirpation of Matter from Abducens Nerve, Open Approach
Extirpation of Matter from Abducens Nerve, Perc Approach