The Body Part Accessory Sinus is identified by letter "P" and occupies the 4th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 09TP
Resection of Accessory Sinus, Perc Endo Approach
Resection of Accessory Sinus, Endo
Resection of Accessory Sinus, Open Approach