Index to Diseases and Injuries

Pericarditis (with decompensation) (with effusion)

Index code:I31.9

with rheumatic fever (conditions in I00)
active — see Pericarditis, rheumatic
inactive or quiescent I09.2
acute (hemorrhagic) (nonrheumatic) (Sicca) I30.9
with chorea (acute) (rheumatic) (Sydenham's) I02.0
benign I30.8
nonspecific I30.0
rheumatic I01.0
with chorea (acute) (Sydenham's) I02.0
adhesive or adherent (chronic) (external) (internal) I31.0
acute — see Pericarditis, acute
rheumatic I09.2
bacterial (acute) (subacute) (with serous or seropurulent effusion) I30.1
calcareous I31.1
cholesterol (chronic) I31.8
acute I30.9
chronic (nonrheumatic) I31.9
rheumatic I09.2
constrictive (chronic) I31.1
coxsackie B33.23
fibrinocaseous (tuberculous) A18.84
fibrinopurulent I30.1
fibrinous I30.8
fibrous I31.0
gonococcal A54.83
idiopathic I30.0
in systemic lupus erythematosus M32.12
infective I30.1
meningococcal A39.53
neoplastic (chronic) I31.8
acute I30.9
obliterans, obliterating I31.0
plastic I31.0
pneumococcal I30.1
postinfarction I24.1
purulent I30.1
rheumatic (active) (acute) (with effusion) (with pneumonia) I01.0
with chorea (acute) (rheumatic) (Sydenham's) I02.0
chronic or inactive (with chorea) I09.2
rheumatoid — see Rheumatoid, carditis
septic I30.1
serofibrinous I30.8
staphylococcal I30.1
streptococcal I30.1
suppurative I30.1
syphilitic A52.06
tuberculous A18.84
uremic N18.9 [I32]
viral I30.1

Use the index to find a code, then confirm it in the Tabular List before assigning it. A code ending in a dash is incomplete, and a code in [brackets] is a manifestation code reported after the underlying condition. Search the whole index.

Frequently asked questions

What is the ICD-10-CM code for Pericarditis?

The ICD-10-CM Alphabetic Index directs "Pericarditis" to I31.9. Subterms below it may lead to a more specific code. Always confirm the code in the Tabular List before assigning it.

ICD-10-CM Index to Diseases and Injuries maintained by CDC/NCHS (public domain), from the CMS FY2027 release.