Specific code 2011 ICD-9-CM Diagnosis Code 424.99
Other endocarditis valve unspecified
  • Short description: Endocarditis NEC.
  • ICD-9-CM 424.99 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 424.99 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 424.99.
  • More recent version(s) of ICD-9-CM 424.99: 2012 2013 2014.
Disease Synonyms
  • Fungal endocarditis
  • Heart valve disorder
  • Immobile heart valve
  • Mycotic endocarditis
  • Myxoid transformation of cardiac valve
  • Rickettsial endocarditis
  • Viral endocarditis
424.99 Excludes
  • endocardial fibroelastosis (425.3)
  • that specified as rheumatic (397.9)
Applies To
  • Any condition classifiable to 424.90 with specified cause, except rheumatic
Convert to ICD-10-CM: 424.99 converts approximately to:
  • 2014 ICD-10-CM I38 Endocarditis, valve unspecified
ICD-9-CM Volume 2 Index entries containing back-references to 424.99:
  • Arteriosclerosis, arteriosclerotic (artery) (deformans) (diffuse) (disease) (endarteritis) (general) (obliterans) (obliterative) (occlusive) (senile) (with calcification) 440.9
    • heart (disease) - see also Arteriosclerosis, coronary
  • Endocarditis (chronic) (indeterminate) (interstitial) (marantic) (nonbacterial thrombotic) (residual) (sclerotic) (sclerous) (senile) (valvular) 424.90
    • arteriosclerotic or due to arteriosclerosis 424.99
    • hypertensive 424.99
    • specified cause, except rheumatic 424.99
  • Obstruction, obstructed, obstructive
    • endocardium 424.90
      • arteriosclerotic 424.99
      • specified cause, except rheumatic 424.99
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 424.99 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.