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 00CY0
Extirpation of Matter from Lumbar Spinal Cord, Open Approach
Extirpation of Matter from Lumbar Spinal Cord, Perc Approach
Extirpate of Matter from Lum Spinal Cord, Perc Endo Approach