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 00CR0
Extirpation of Matter from Accessory Nerve, Open Approach
Extirpation of Matter from Accessory Nerve, Perc Approach
Extirpation of Matter from Accessory Nrv, Perc Endo Approach