ICD-10-CM > J00-J99 > J30-J39 > J35 > J35.0 J35.0 Chronic tonsillitis and adenoiditis Non-Billable/Non-Specific Type 2 Excludes acute tonsillitis (J03.-) Codes J35.01Chronic tonsillitisJ35.02Chronic adenoiditisJ35.03Chronic tonsillitis and adenoiditis