Specific code 2007 ICD-9-CM Diagnosis Code 474.00
Chronic tonsillitis
  • ICD-9-CM 474.00 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 474.00 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
  • You are viewing the 2007 version of ICD-9-CM 474.00.
  • More recent version(s) of ICD-9-CM 474.00: 2008 2009 2010 2011 2012 2013 2014 2015.
Convert to ICD-10-CM: 474.00 converts directly to:
  • 2015/16 ICD-10-CM J35.01 Chronic tonsillitis
Approximate Synonyms
  • Tonsillitis, chronic
ICD-9-CM Volume 2 Index entries containing back-references to 474.00:
  • Hypertrophy, hypertrophic
    • tonsil (faucial) (infective) (lingual) (lymphoid) 474.11
  • Infection, infected, infective (opportunistic) 136.9
    • focal
      • teeth (pulpal origin) 522.4
      • tonsils 474.00
    • lymphoid tissue, base of tongue or posterior pharynx, NEC 474.00
    • pharynx 478.29
      • Coxsackie virus 074.0
      • phlegmonous 462
      • 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
  • 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
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 474.00 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2007 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.