J03.91 Acute recurrent tonsillitis, unspecified
ICD-10-CM · CMS code reference
Official ICD-10-CM description: Acute recurrent tonsillitis, unspecified
Coding notes
From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.
Excludes1
Not coded together with this code. The exception is when the two conditions are unrelated to each other.
- influenza virus with other respiratory manifestations (J09.X2, J10.1, J11.1)
- acute sore throat (J02.-)
- hypertrophy of tonsils (J35.1)
- peritonsillar abscess (J36)
- sore throat NOS (J02.9)
- streptococcal sore throat (J02.0)
- chronic obstructive pulmonary disease with acute lower respiratory infection (J44.0)
Excludes2
Not part of this code, but both can be coded when both are documented.
- chronic tonsillitis (J35.0)
Related codes
J03.00Acute streptococcal tonsillitis, unspecified ICD-10-CMJ03.01Acute recurrent streptococcal tonsillitis ICD-10-CMJ03.80Acute tonsillitis due to other specified organisms ICD-10-CMJ03.81Acute recurrent tonsillitis due to other specified organisms ICD-10-CMJ03.90Acute tonsillitis, unspecified ICD-10-CM
Common questions
Is J03.91 a billable code?
Yes. J03.91 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.