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 0SC40
Extirpation of Matter from Lumsac Disc, Perc Endo Approach
Extirpation of Matter from Lumbosacral Disc, Perc Approach
Extirpation of Matter from Lumbosacral Disc, Open Approach