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 00CP0
Extirpate of Matter from Glossophar Nrv, Perc Endo Approach
Extirpation of Matter from Glossophar Nrv, Perc Approach
Extirpation of Matter from Glossophar Nrv, Open Approach