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 0GC00
Extirpation of Matter from Pituitary Gland, Open Approach
Extirpation of Matter from Pituitary Gland, Perc Approach
Extirpate of Matter from Pituitary Gland, Perc Endo Approach