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 00NW0
Release Cervical Spinal Cord, Perc Endo Approach
Release Cervical Spinal Cord, Percutaneous Approach
Release Cervical Spinal Cord, Open Approach