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FY2027

ICD-10 Code for Pericarditis

Also indexed as (with decompensation) (with effusion)

The ICD-10-CM code for pericarditis is I31.9 — Disease of pericardium, unspecified. This is the code the Alphabetic Index gives for pericarditis with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).

BillableUnspecified

I31.9 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.

Which pericarditis code should you use?

The Alphabetic Index lists 20 codes under Pericarditis. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.

By type

acuteI30.9Acute pericarditis, unspecified
adhesive or adherentI31.0Chronic adhesive pericarditis
bacterialI30.1Infective pericarditis
calcareousI31.1Chronic constrictive pericarditis
cholesterolI31.8Other specified diseases of pericardium
chronicI31.9Disease of pericardium, unspecified
constrictiveI31.1Chronic constrictive pericarditis
coxsackieB33.23Viral pericarditis
fibrinocaseousA18.84Tuberculosis of heart
fibrinopurulentI30.1Infective pericarditis
fibrinousI30.8Other forms of acute pericarditis
fibrousI31.0Chronic adhesive pericarditis
gonococcalA54.83Gonococcal heart infection
idiopathicI30.0Acute nonspecific idiopathic pericarditis
in systemic lupus erythematosusM32.12Pericarditis in systemic lupus erythematosus
infectiveI30.1Infective pericarditis
meningococcalA39.53Meningococcal pericarditis
neoplasticI31.8Other specified diseases of pericardium
obliterans, obliteratingI31.0Chronic adhesive pericarditis
plasticI31.0Chronic adhesive pericarditis
pneumococcalI30.1Infective pericarditis
postinfarctionI24.1Dressler's syndrome
purulentI30.1Infective pericarditis
rheumaticI01.0Acute rheumatic pericarditis
septicI30.1Infective pericarditis
serofibrinousI30.8Other forms of acute pericarditis
staphylococcalI30.1Infective pericarditis
streptococcalI30.1Infective pericarditis
suppurativeI30.1Infective pericarditis
syphiliticA52.06Other syphilitic heart involvement
tuberculousA18.84Tuberculosis of heart
uremicN18.9Chronic kidney disease, unspecified
viralI30.1Infective pericarditis

Pericarditis with rheumatic fever

inactive or quiescentI09.2Chronic rheumatic pericarditis

Pericarditis acute

with choreaI02.0Rheumatic chorea with heart involvement
benignI30.8Other forms of acute pericarditis
nonspecificI30.0Acute nonspecific idiopathic pericarditis
rheumaticI01.0Acute rheumatic pericarditis
rheumatic › with choreaI02.0Rheumatic chorea with heart involvement

Pericarditis adhesive or adherent

rheumaticI09.2Chronic rheumatic pericarditis

Pericarditis cholesterol

acuteI30.9Acute pericarditis, unspecified

Pericarditis chronic

rheumaticI09.2Chronic rheumatic pericarditis

Pericarditis neoplastic

acuteI30.9Acute pericarditis, unspecified

Pericarditis rheumatic

with choreaI02.0Rheumatic chorea with heart involvement
chronic or inactiveI09.2Chronic rheumatic pericarditis

Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources