Chronic tonsillitis with hypertrophy

Created Dec 2015
Reviewed Dec 2019


Our trainees have discovered that there are two different ICD-10-AM Alphabetic Index pathways for chronic tonsillitis with hypertrophy:

Tonsillitis (acute) (follicular) (gangrenous) (infective) (lingual) (septic) (subacute) (ulcerative) J03.9
- hypertrophic J35.0

Hypertrophy, hypertrophic
- tonsils (faucial) (infective) (lingual) (lymphoid) J35.1

Should both codes (J35.0 and J35.1) for this disease concept be assigned or should a combined code be used?


Hypertrophy of the tonsils is a symptom of tonsillitis.  Therefore, assign J35.0 Chronic tonsillitis only according to the lead term ‘tonsillitis’ in the ICD-10-AM Alphabetic Index.


Back to top