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 09TU0
Resection of Right Ethmoid Sinus, Endo
Resection of Right Ethmoid Sinus, Open Approach
Resection of Right Ethmoid Sinus, Perc Endo Approach