Is I31 a billable code?
No. I31 is a header code that groups 8 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
I31: Other diseases of pericardium
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
I31 groups related diagnoses under other diseases of pericardium. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under I31
- I31.0Chronic adhesive pericarditis
- I31.1Chronic constrictive pericarditis
- I31.2Hemopericardium, not elsewhere classified
- I31.31Malignant pericardial effusion in diseases classified elsewhere
- I31.39Other pericardial effusion (noninflammatory)
- I31.4Cardiac tamponade
- I31.8Other specified diseases of pericardium
- I31.9Disease of pericardium, unspecified
I31 questions
What does I31 mean?
I31 is the ICD-10-CM code for Other diseases of pericardium. It is in chapter 9, Diseases of the circulatory system (I00-I99).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.