Specific code 2012 ICD-9-CM Diagnosis Code 463
Acute tonsillitis
  • ICD-9-CM 463 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 463 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
  • You are viewing the 2012 version of ICD-9-CM 463.
  • More recent version(s) of ICD-9-CM 463: 2013 2014.
Disease Synonyms
  • Acute adenoiditis
  • Adenoiditis, acute
  • Lingual tonsillitis
  • Lingular tonsillitis
  • Recurrent acute tonsillitis
  • Tonsillitis
  • Tonsillitis, lingual
463 Excludes
  • chronic tonsillitis (474.0)
  • hypertrophy of tonsils (474.1)
  • peritonsillar abscess [quinsy] (475)
  • sore throat:
  • streptococcal tonsillitis (034.0)
Applies To
  • Tonsillitis (acute):
    • NOS
    • follicular
    • gangrenous
    • infective
    • pneumococcal
    • septic
    • staphylococcal
    • suppurative
    • ulcerative
    • viral
Convert to ICD-10-CM: 463 converts approximately to:
  • 2014 ICD-10-CM J03.90 Acute tonsillitis, unspecified
ICD-9-CM Volume 2 Index entries containing back-references to 463:
  • Adenoiditis 474.01
    • acute 463
  • Gangrene, gangrenous (anemia) (artery) (cellulitis) (dermatitis) (dry) (infective) (moist) (pemphigus) (septic) (skin) (stasis) (ulcer) 785.4
    • tonsillitis (acute) 463
  • Infection, infected, infective (opportunistic) 136.9
    • adenoid (chronic) 474.01
      • acute 463
      • and tonsil (chronic) 474.02
        • acute or subacute 463
    • tonsil (faucial) (lingual) (pharyngeal) 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
    • with influenza, flu, or grippe (see also Influenza) 487.1
    • diphtheritic (membranous) 032.0
    • influenzal (see also Influenza) 487.1
    • parenchymatous 475
    • tuberculous (see also Tuberculosis) 012.8
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 463 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 2012 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.