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 09TW0
Resection of Right Sphenoid Sinus, Open Approach
Resection of Right Sphenoid Sinus, Perc Endo Approach
Resection of Right Sphenoid Sinus, Endo