ICD-10-CM I31: Other diseases of pericardium

ICD-10-CM Diagnosis Code (2025)

Official Description for I31

Other diseases of pericardium

Coding Notes & Guidelines for I31

Excludes1: Not Coded Here

diseases of pericardium specified as rheumatic (I09.2)
postcardiotomy syndrome (I97.0)
traumatic injury to pericardium (S26.-)

Excludes1: Not Coded Here

hemopericardium as current complication following acute myocardial infarction (I23.0)
malignant pericardial effusion (I31.31)

Excludes1: Not Coded Here

acute pericardial effusion (I30.9)

Code First

underlying neoplasm (C00-D49)

Code First

underlying cause

Inclusion Terms

Accretio cordis
Adherent pericardium
Adhesive mediastinopericarditis

Inclusion Terms

Concretio cordis
Pericardial calcification

Inclusion Terms

Chylopericardium

Inclusion Terms

Epicardial plaques
Focal pericardial adhesions

Inclusion Terms

Pericarditis (chronic) NOS

Child Codes (More Specific Codes for I31):

I31.0 - Chronic adhesive pericarditis I31.1 - Chronic constrictive pericarditis I31.2 - Hemopericardium, not elsewhere classified I31.3 - Pericardial effusion (noninflammatory) I31.31 - Malignant pericardial effusion in diseases classified elsewhere I31.39 - Other pericardial effusion (noninflammatory) I31.4 - Cardiac tamponade I31.8 - Other specified diseases of pericardium I31.9 - Disease of pericardium, unspecified

About ICD-10-CM Code I31 (Other diseases of pericardium)

ICD-10-CM code I31 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM I31 became effective on October 1, 2024.

This page provides detailed information about I31 - Other diseases of pericardium. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Other diseases of pericardium.