Specific code 2011 ICD-9-CM Diagnosis Code 424.91
Endocarditis in diseases classified elsewhere
  • Short description: Endocarditis in oth dis.
  • ICD-9-CM 424.91 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 424.91 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
  • You are viewing the 2011 version of ICD-9-CM 424.91.
  • More recent version(s) of ICD-9-CM 424.91: 2012 2013 2014.
Disease Synonyms
  • Endocarditis associated with another disorder
  • Endocarditis due to systemic lupus erythematosus
  • Endocarditis in sle
  • Endocarditis in sle (systemic lupus erythematosus)
  • Listerial endocarditis
  • Nonbacterial verrucal endocardiosis
  • Q fever endocarditis
  • SLE w endocarditis
  • Systemic lupus erythematosus (sle) with endocarditis
  • Tuberculosis of endocardium
424.91 Excludes
Code First
  • Code first underlying disease, as:
    • atypical verrucous endocarditis [Libman-Sacks] (710.0)
    • disseminated lupus erythematosus (710.0)
    • tuberculosis (017.9)
Convert to ICD-10-CM: 424.91 converts approximately to:
  • 2014 ICD-10-CM I39 Endocarditis and heart valve disorders in diseases classified elsewhere
ICD-9-CM Volume 2 Index entries containing back-references to 424.91:
  • Disease, diseased - see also Syndrome
    • Libman-Sacks (verrucous endocarditis) 710.0 [424.91]
  • Endocarditis (chronic) (indeterminate) (interstitial) (marantic) (nonbacterial thrombotic) (residual) (sclerotic) (sclerous) (senile) (valvular) 424.90
    • atypical verrucous (Libman-Sacks) 710.0 [424.91]
    • Libman-Sacks 710.0 [424.91]
    • tuberculous (see also Tuberculosis) 017.9 [424.91]
    • verrucous (acute) (any valve) (chronic) (subacute) NEC 710.0 [424.91]
      • nonbacterial 710.0 [424.91]
      • nonrheumatic 710.0 [424.91]
  • Libman-Sacks disease or syndrome 710.0 [424.91]
  • Sacks-Libman disease 710.0 [424.91]
  • Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (congenital) (degeneration) (disease) (fibrocaseous) (fistula) (gangrene) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) 011.9
    • endocarditis (any valve) 017.9 [424.91]
    • endocardium (any valve) 017.9 [424.91]
  • Verrucous endocarditis (acute) (any valve) (chronic) (subacute) 710.0 [424.91]
    • nonbacterial 710.0 [424.91]
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 424.91 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 2011 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.