The Device No Device is identified by letter "Z" and occupies the 6th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 0N840Z
Division of Left Parietal Bone, Perc Endo Approach
Division of Left Parietal Bone, Open Approach
Division of Left Parietal Bone, Percutaneous Approach