Abnormal patency of the eustachian tube is annoying but does not produce hearing impairment.
[pedja5.tripod.com]
unspecified J0301Acute recurrent streptococcal tonsillitis J0380Acute tonsillitis due to other specified organisms J0381Acute recurrent tonsillitis due to other specified
[cms.gov]
[…] effusion, otitis; media, mucoid, otitis; media, secretory, otitis; media, transudative, Secretory Otitis Media, Otitis media, with effusion, Otitis media, mucoid, Otitis
[fpnotebook.com]