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 474.00 Chronic tonsillitis View the most recent version of ICD-9-CM 474.00 474.00 is a specific code that can be used to specify a diagnosis 474.00 contains 10 index entries View the ICD-9-CM Volume 1 474.* hierarchy  Index entries containing 474.00: Hypertrophy, hypertrophic tonsil (faucial) (infective) (lingual) (lymphoid) 474.11 with tonsillitis 474.00 and adenoiditis 474.02 Infection, infected, infective (opportunistic) 136.9 focal tonsils 474.00 and adenoids 474.02 lymphoid tissue, base of tongue or posterior pharynx, NEC 474.00 pharynx 478.29 posterior, lymphoid 474.00 tonsil (faucial) (lingual) (pharyngeal) 474.00 acute or subacute 463 and adenoid 474.02 tag 474.00 Remnant tonsil 474.8 infected 474.00 Septic - see also condition tonsils 474.00 and adenoids 474.02 Tonsillitis (acute) (catarrhal) (croupous) (follicular) (gangrenous) (infective) (lacunar) (lingual) (malignant) (membranous) (phlegmonous) (pneumococcal) (pseudomembranous) (purulent) (septic) (staphylococcal) (subacute) (suppurative) (toxic) (ulcerative) (vesicular) (viral) 463 chronic 474.00 hypertrophic 474.00