The Approach Percutaneous is identified by number "3" and occupies the 5th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 0NNG3
Release Left Ethmoid Bone, Percutaneous Approach
Release Left Ethmoid Bone, Percutaneous Endoscopic Approach
Release Left Ethmoid Bone, Open Approach