Home > 2014 ICD-9-CM Diagnosis Codes > Diseases Of The Circulatory System 390-459 > Other Forms Of Heart Disease 420-429 > Other diseases of pericardium 423-
Specific code 2014 ICD-9-CM Diagnosis Code 423.9
Unspecified disease of pericardium
  • 2014
  • Billable Thru Sept 30/2015
  • Non-Billable On/After Oct 1/2015

  • Short description: Pericardial disease NOS.
  • ICD-9-CM 423.9 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 423.9 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 2014 version of ICD-9-CM 423.9.
  • More recent version(s) of ICD-9-CM 423.9: 2015.
Convert to ICD-10-CM: 423.9 converts approximately to:
  • 2015/16 ICD-10-CM I31.9 Disease of pericardium, unspecified
Approximate Synonyms
  • Chest pain due to pericarditis
  • Chest pain of pericarditis
  • Lyme myopericarditis
  • Myopericarditis due to lyme disease
  • Pericardial effusion
  • Pericardial effusion (fluid around heart)
  • Pericarditis
  • Pericarditis (inflammation of heart sac)
  • Pericarditis chest pain
  • Pericarditis pain (inflammation of heart sac)
ICD-9-CM Volume 2 Index entries containing back-references to 423.9:
  • Cardiopericarditis (see also Pericarditis) 423.9
  • Compression
    • cardiac 423.9
  • Disease, diseased - see also Syndrome
    • pericardium 423.9
  • Dropsy, dropsical (see also Edema) 782.3
    • pericardium (see also Pericarditis) 423.9
  • Effusion
    • pericardium, pericardial (see also Pericarditis) 423.9
  • Hydropericarditis (see also Pericarditis) 423.9
  • Hydropericardium (see also Pericarditis) 423.9
  • Hydropneumopericarditis (see also Pericarditis) 423.9
  • Hydropneumopericardium (see also Pericarditis) 423.9
  • Inflammation, inflamed, inflammatory (with exudation)
    • pericardium (see also Pericarditis) 423.9
  • Mediastinopericarditis (see also Pericarditis) 423.9
    • rheumatic, chronic 393
  • Myopericarditis (see also Pericarditis) 423.9
  • Pericarditis (granular) (with decompensation) (with effusion) 423.9
    • with
      • rheumatic fever (conditions classifiable to 390)
        • active (see also Pericarditis, rheumatic) 391.0
        • inactive or quiescent 393
    • adhesive or adherent (external) (internal) 423.1
      • acute - see Pericarditis, acute
      • rheumatic (external) (internal) 393
    • bacterial (acute) (subacute) (with serous or seropurulent effusion) 420.99
    • chronic (nonrheumatic) 423.8
    • fibrinocaseous (see also Tuberculosis) 017.9 [420.0]
    • fibrinous - see Pericarditis, rheumatic
    • obliterans, obliterating 423.1
    • rheumatic (active) (acute) (with effusion) (with pneumonia) 391.0
      • with chorea (acute) (rheumatic) (Sydenham's) 392.0
      • chronic or inactive (with chorea) 393
    • serofibrinous - see Pericarditis, rheumatic
    • tuberculous (acute) (chronic) (see also Tuberculosis) 017.9 [420.0]
  • Pleuropericarditis (see also Pericarditis) 423.9
  • Pneumohemopericardium (see also Pericarditis) 423.9
  • Pneumohydropericardium (see also Pericarditis) 423.9
  • Pneumopericarditis (see also Pericarditis) 423.9
  • Scar, scarring (see also Cicatrix) 709.2
    • compression, pericardial 423.9
 423.8 ICD9Data.com 424 
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 423.9 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 2014 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.
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