I31.3
⚠ Non-billable
Pericardial effusion (noninflammatory)
ICD-10-CM · FY2026 · Diseases of the Circulatory System
Code
I31.3
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Diseases of the Circulatory System
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code I31.3?
ICD-10-CM code I31.3 represents Pericardial effusion (noninflammatory). It is a non-billable header code requiring a more specific subcategory in the Diseases of the Circulatory System chapter, effective October 1, 2025 – September 30, 2026.
Is I31.3 billable?
No. I31.3 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is I31.3 in?
I31.3 belongs to the Diseases of the Circulatory System chapter (I00–I99) of ICD-10-CM.
Related codes in the I31 category
I31
Other diseases of pericardium
Non-billable
I31.0
Chronic adhesive pericarditis
Billable
I31.1
Chronic constrictive pericarditis
Billable
I31.2
Hemopericardium, not elsewhere classified
Billable
I31.4
Cardiac tamponade
Billable
I31.8
Other specified diseases of pericardium
Billable
I31.9
Disease of pericardium, unspecified
Billable
I31.31
Malignant pericardial effusion in diseases classified elsewhere
Billable
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