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 0NCG0
Extirpation of Matter from Left Ethmoid Bone, Perc Approach
Extirpate of Matter from L Ethmoid Bone, Perc Endo Approach
Extirpation of Matter from Left Ethmoid Bone, Open Approach