474 Chronic disease of tonsils and adenoids 
474.0 Chronic tonsillitis and adenoiditis 
474.00 Chronic tonsillitis convert 474.00 to ICD-10-CM 474.01 Chronic adenoiditis convert 474.01 to ICD-10-CM
474.02 Chronic tonsillitis and adenoiditis convert 474.02 to ICD-10-CM 474.1 Hypertrophy of tonsils and adenoids 474.10 Hypertrophy of tonsil with adenoids convert 474.10 to ICD-10-CM 474.11 Hypertrophy of tonsils alone convert 474.11 to ICD-10-CM 474.12 Hypertrophy of adenoids alone convert 474.12 to ICD-10-CM 474.2 Adenoid vegetations convert 474.2 to ICD-10-CM 474.8 Other chronic disease of tonsils and adenoids convert 474.8 to ICD-10-CM 474.9 Unspecified chronic disease of tonsils and adenoids convert 474.9 to ICD-10-CM