Acute pericarditis (I30) ICD-10-CM
The I30 code range covers acute pericarditis with 5 ICD-10-CM diagnosis codes. 4 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- acute mediastinopericarditis
- acute myopericarditis
- acute pericardial effusion
- acute pleuropericarditis
- acute pneumopericarditis
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Codes in the I30 Range 5 codes · 4 billable
About the I30 Code Range
Acute pericarditis is inflammation of the sac around the heart that develops suddenly. I30 groups its acute forms.
The subdivisions distinguish nonspecific pericarditis without a known cause (I30.0) from pericarditis caused by infection (I30.1). They also provide a code for other acute forms (I30.8) and one for acute pericarditis without a specified form (I30.9).
Questions About This Page
How many billable codes are in the I30 range?
Of the 5 codes in this range, 4 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the I30 range classify?
The range classifies acute pericarditis. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
