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2008 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.* > 2008 ICD-9-CM Diagnosis 474.1 Hypertrophy of tonsils and adenoids 474.1 is a non-specific code that cannot be used to specify a diagnosis View the ICD-9-CM Volume 1 474.* hierarchy 474.1 also known as: Enlargement of tonsils or adenoids Hyperplasia of tonsils or adenoids Hypertrophy of tonsils or adenoids 474.1 excludes: that with: adenoiditis (474.01) adenoiditis and tonsillitis (474.02) tonsillitis (474.00)