I31.3 – Pericardial effusion (noninflammatory)

ICD-10-CM 2027 diagnosis code · Other forms of heart disease

Non-billable header

ICD-10-CM code I31.3

Code: I31.3 (claims format: I313)
Description: Pericardial effusion (noninflammatory)
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 9. Diseases of the circulatory system (I00-I99)
Block: I30-I5A Other forms of heart disease
Parent codes: I31

Billable codes under I31.3

I31.3 is a header code and cannot be used on claims. Choose the most specific code:

Notes for I31.3

Excludes1 (not coded here):

acute pericardial effusion (I30.9)

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

I31 – Other diseases of pericardium

Excludes1 (not coded here):

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

Related codes in I31

I31.0 – Chronic adhesive pericarditisBillable
I31.1 – Chronic constrictive pericarditisBillable
I31.2 – Hemopericardium, not elsewhere classifiedBillable
I31.4 – Cardiac tamponadeBillable
I31.8 – Other specified diseases of pericardiumBillable
I31.9 – Disease of pericardium, unspecifiedBillable

Frequently asked questions

What is ICD-10 code I31.3?

I31.3 is the ICD-10-CM code for pericardial effusion (noninflammatory), in the block I30-I5A (Other forms of heart disease).

Is I31.3 a billable code?

No. I31.3 is a header code with more specific child codes; report one of the billable codes listed above.

What category does I31.3 belong to?

It belongs to category I31 – Other diseases of pericardium.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.