Body System 9: Ear, Nose, Sinus

Operation 0: Alteration Operation 1: Bypass Operation 2: Change Operation 3: Control Operation 5: Destruction Operation 7: Dilation Operation 8: Division Operation 9: Drainage Operation B: Excision Operation C: Extirpation Operation D: Extraction Operation H: Insertion Operation J: Inspection Operation M: Reattachment Operation N: Release Operation P: Removal Operation Q: Repair Operation R: Replacement Operation S: Reposition Operation T: Resection Operation U: Supplement Operation W: Revision Operation X: Transfer