I31.39 — Other pericardial effusion (noninflammatory)

I31.39

ICD-10 Chapter 9: Circulatory System — illustrative image — Chapter 9: Diseases of the circulatory system (I00–I99) — illustrative image

What this code means

A pericardial effusion is a build-up of fluid in the sac around the heart that is not due to inflammation.

Also called: pericardial effusion.

When this code is used

Used for other pericardial effusion (noninflammatory).

Where it sits in ICD-10-CM

Code I31.39 belongs to Chapter 9: Diseases of the circulatory system, which covers codes I00–I99 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.

Related anatomy

Heart

Frequently asked questions

What is ICD-10-CM code I31.39?

I31.39 is the ICD-10-CM diagnosis code for “Other pericardial effusion (noninflammatory)”. A pericardial effusion is a build-up of fluid in the sac around the heart that is not due to inflammation.

When is code I31.39 used?

Used for other pericardial effusion (noninflammatory). It belongs to Chapter 9 of ICD-10-CM (Diseases of the circulatory system).

This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.