ICD-10-CM > J00-J99 > J30-J39 > J33 J33 Nasal polyp Non-Billable/Non-Specific Type 1 Excludes adenomatous polyps (D14.0) Codes J33.0Polyp of nasal cavityJ33.1Polypoid sinus degenerationJ33.8Other polyp of sinusJ33.9Nasal polyp, unspecified