CPT 031233 — Nasal/sinus endoscopy, diagnostic; with maxillary sinusoscopy (via inferior meatus or canine fossa puncture) (2 hospitals, — samples)
CPT 031235 — Nasal/sinus endoscopy, diagnostic; with sphenoid sinusoscopy (via puncture of sphenoidal face or cannulation of ostium) (2 hospitals, — samples)
CPT 031237 — Nasal/sinus endoscopy, surgical; with biopsy, polypectomy or debridement (separate procedure) (2 hospitals, — samples)
CPT 031238 — Nasal/sinus endoscopy, surgical; with control of nasal hemorrhage (2 hospitals, — samples)
CPT 031267 — Nasal/sinus endoscopy, surgical, with maxillary antrostomy; with removal of tissue from maxillary sinus (2 hospitals, — samples)
CPT 031276 — Nasal/sinus endoscopy, surgical, with frontal sinus exploration, including removal of tissue from frontal sinus, when performed (2 hospitals, — samples)