I09.2

Billable
ChapterI00–I99
Ranksubcategory
Official Description

Chronic rheumatic pericarditis

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Billable/specific code (valid for reimbursement).
  • •Chapter 9: Diseases of the Circulatory System (I00-I99).

Instructional Notes

Includes
  • Adherent pericardium, rheumatic
  • Chronic rheumatic mediastinopericarditis
  • Chronic rheumatic myopericarditis
Excludes1(Not coded here)
  • chronic pericarditis not specified as rheumatic (I31.-)
General instructions are available for the parent sections:
View CH9 Notes

Clinical Hierarchy

CH9Diseases of the circulatory system (I00-I99)
I05-I09Chronic rheumatic heart diseases (I05-I09)
I09Other rheumatic heart diseases
I09.2Chronic rheumatic pericarditis

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to I09.2:

chapterCH9
Diseases of the circulatory system (I00-I99)
View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to I09.2. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

14 raw paths
Adherent1 unique routes
pericardium (nonrheumatic)
rheumatic→I09.2
Adhesions, adhesive (postinfective)3 unique routes
cardiac
rheumatic→I09.2
heart
rheumatic→I09.2
pericardium (nonrheumatic)
rheumatic→I09.2
Concretio cordis1 unique routes
rheumatic→I09.2
Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)1 unique routes
rheumatic (active) (acute) (chronic) (subacute)
inactive or quiescent with
pericarditis→I09.2
Mediastinopericarditis1 unique routes
chronic
rheumatic→I09.2
Myopericarditis1 unique routes
chronic rheumatic→I09.2
Pericarditis (with decompensation) (with effusion)4 unique routes
adhesive or adherent (chronic) (external) (internal)
rheumatic→I09.2
chronic (nonrheumatic)
rheumatic→I09.2
rheumatic (active) (acute) (with effusion) (with pneumonia)
chronic or inactive (with chorea)→I09.2
with rheumatic fever (conditions in I00)
inactive or quiescent→I09.2
Rheumatic (acute) (subacute)2 unique routes
adherent pericardium→I09.2
pericarditis (active) (acute) (with effusion) (with pneumonia)
chronic or inactive→I09.2

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 314
Other Circulatory System Diagnoses with MCC
DRG 315
Other Circulatory System Diagnoses with CC
DRG 316
Other Circulatory System Diagnoses without CC/MCC

Cross Reference

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