The Body Part Upper Jaw is identified by number "4" and occupies the 4th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 0WJ4
Inspection of Upper Jaw, External Approach
Inspection of Upper Jaw, Percutaneous Approach
Inspection of Upper Jaw, Percutaneous Endoscopic Approach
Inspection of Upper Jaw, Open Approach