Acute upper respiratory infections (J00-J06)
J03: Acute tonsillitis

excludes1
acute sore throat (J02.-)
hypertrophy of tonsils (J35.1)
peritonsillar abscess (J36)
sore throat NOS (J02.9)
streptococcal sore throat (J02.0)

excludes2
chronic tonsillitis (J35.0)
J03.0: Streptococcal tonsillitis
J03.8: Acute tonsillitis due to other specified organisms
J03.9: Acute tonsillitis, unspecified

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