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 01CN0
Extirpation of Matter from Lumbar Symp Nrv, Perc Approach
Extirpate of Matter from Lumbar Symp Nrv, Perc Endo Approach
Extirpation of Matter from Lumbar Symp Nrv, Open Approach