A patient with a diagnosis of chronic sphenoidal sinusitis undergoes a bilateral sinusotomy. while the provider examines the diseased sphenoid sinus, she takes a biopsy of the sphenoidal masses and removes the mucosa with several polyps. transseptal sutures are placed and the intraoral incision is closed in a single layer. the nose is packed and external nasal dressings are placed. what cpt® and icd-10-cm codes are reported?
