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 03CS0
Extirpation of Matter from R Temporal Art, Perc Approach
Extirpate of Matter from R Temporal Art, Perc Endo Approach
Extirpation of Matter from R Temporal Art, Open Approach