2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Respiratory System 460-519 > Other Diseases Of Upper Respiratory Tract 470-478 > Chronic Disease Of Tonsils And Adenoids 474.* > 2006 ICD-9-CM Diagnosis 474.0 Chronic tonsillitis and adenoiditis View the most recent version of ICD-9-CM 474.0 474.0 is a non-specific code that cannot be used to specify a diagnosis View the ICD-9-CM Volume 1 474.* hierarchy 474.0 Excludes acute or unspecified tonsillitis (463)