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 00CT0
Extirpation of Matter from Spinal Meninges, Perc Approach
Extirpation of Matter from Spinal Meninges, Open Approach
Extirpate of Matter from Spinal Meninges, Perc Endo Approach