I30
ICD-10Non-billable categoryAcute pericarditis
Official ICD-10-CM descriptor (FY2026)
Acute pericarditis
I30 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Includes
- acute mediastinopericarditis
- acute myopericarditis
- acute pericardial effusion
- acute pleuropericarditis
- acute pneumopericarditis
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- Dressler's syndrome (I24.1)
- rheumatic pericarditis (acute) (I01.0)
- viral pericarditis due to Coxsackie virus (B33.23)
More specific codes under I30
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.