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 05C00
Extirpation of Matter from Azygos Vein, Open Approach
Extirpation of Matter from Azygos Vein, Perc Approach
Extirpation of Matter from Azygos Vein, Perc Endo Approach