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2007 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Circulatory System 390-459 > Other Forms Of Heart Disease 420-429 > Other Diseases Of Pericardium 423.* > 2007 ICD-9-CM Diagnosis 423.9 Unspecified disease of pericardium  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 423.9 can be accessed here. 423.9 is a specific code that can be used to specify a diagnosis 423.9 contains 20 index entries View the ICD-9-CM Volume 1 423.* hierarchy Index entries containing 423.9: Cardiac - see also condition tamponade 423.9 Cardiopericarditis (see also Pericarditis) 423.9 Compression cardiac 423.9 Disease, diseased - see also Syndrome pericardium 423.9 specified type NEC 423.8 Dropsy, dropsical (see also Edema) 782.3 pericardium (see also Pericarditis) 423.9 Effusion pericardium, pericardial (see also Pericarditis) 423.9 acute 420.90 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 acute 420.90 chronic 423.8 rheumatic 393 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 actinomycotic 039.8 [420.0] acute (nonrheumatic) 420.90 with chorea (acute) (rheumatic) (Sydenham's) 392.0 bacterial 420.99 benign 420.91 hemorrhagic 420.90 idiopathic 420.91 infective 420.90 nonspecific 420.91 rheumatic 391.0 with chorea (acute) (rheumatic) (Sydenham's) 392.0 sicca 420.90 viral 420.91 adhesive or adherent (external) (internal) 423.1 acute - see Pericarditis, acute rheumatic (external) (internal) 393 amebic 006.8 [420.0] bacterial (acute) (subacute) (with serous or seropurulent effusion) 420.99 calcareous 423.2 cholesterol (chronic) 423.8 acute 420.90 chronic (nonrheumatic) 423.8 rheumatic 393 constrictive 423.2 Coxsackie 074.21 due to actinomycosis 039.8 [420.0] amebiasis 006.8 [420.0] Coxsackie (virus) 074.21 histoplasmosis (see also Histoplasmosis) 115.93 nocardiosis 039.8 [420.0] tuberculosis (see also Tuberculosis) 017.9 [420.0] fibrinocaseous (see also Tuberculosis) 017.9 [420.0] fibrinopurulent 420.99 fibrinous - see Pericarditis, rheumatic fibropurulent 420.99 fibrous 423.1 gonococcal 098.83 hemorrhagic 423.0 idiopathic (acute) 420.91 infective (acute) 420.90 meningococcal 036.41 neoplastic (chronic) 423.8 acute 420.90 nonspecific 420.91 obliterans, obliterating 423.1 plastic 423.1 pneumococcal (acute) 420.99 postinfarction 411.0 purulent (acute) 420.99 rheumatic (active) (acute) (with effusion) (with pneumonia) 391.0 with chorea (acute) (rheumatic) (Sydenham's) 392.0 chronic or inactive (with chorea) 393 septic (acute) 420.99 serofibrinous - see Pericarditis, rheumatic staphylococcal (acute) 420.99 streptococcal (acute) 420.99 suppurative (acute) 420.99 syphilitic 093.81 tuberculous (acute) (chronic) (see also Tuberculosis) 017.9 [420.0] uremic 585.9 [420.0] viral (acute) 420.91 Pleuropericarditis (see also Pericarditis) 423.9 acute 420.90 Pneumohemopericardium (see also Pericarditis) 423.9 Pneumohydropericardium (see also Pericarditis) 423.9 Pneumopericarditis (see also Pericarditis) 423.9 acute 420.90 Scar, scarring (see also Cicatrix) 709.2 compression, pericardial 423.9 Tamponade heart (Rose's) (see also Pericarditis) 423.9