OTHER DISEASES OF THE UPPER RESPIRATORY TRACT (470-478)
471 Nasal polyps
Excludes:
adenomatous polyps (212.0)
471.0: Polyp of nasal cavity
Polyp:
choanal
nasopharyngeal
471.1: Polypoid sinus degeneration
Woakes' syndrome or ethmoiditis
471.8: Other polyp of sinus
Polyp of sinus:
accessory
ethmoidal
maxillary
sphenoidal
471.9: Unspecified nasal polyp
Nasal polyp NOS
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