Hello, Could someone clarify the coding for the propel stent S1091 for a hospital. If a FESS is done, total ethmoidectomy with frontal & sphenoidotomy with tissue removal and maxillary antrostomy with tissue removal. Also a septoplasty & turbinoplasty. Propel stents were placed in the ethmoid sinus cavity at the end of the procedure. Is the propel stent coded? My thinking is because a procedure was done in the ethmoids the propel stent placement is included in that FESS procedure. ( 31299 & S1091 is not coded) If only the propel stent was placed, coding would be 31299 & S1091. Correct? If the FESS was done in the maxillary sinus and the propel stent was placed in the ethmoid sinus then the coding would be 31299 & S1091. Correct? Does the payor matter? Am I missing any other codes for the propel stent? Thank you so much if someone could let me know if my thinking is correct!