I31.1

Billable

Chronic constrictive pericarditis

I31.1 is the ICD-10-CM code for Chronic constrictive pericarditis. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
I00-I99
Parent
I31
Edition
FY2026

I00-I99 Diseases of the circulatory system

What this means — in plain language

MedlinePlus · NIH

The pericardium is a membrane, or sac, that surrounds your heart. It holds the heart in place and helps it work properly. Problems with the pericardium include: Pericarditis - an inflammation of the sac. It can be from a virus or other infection, a heart attack, heart surgery, other medical conditions, injuries, and certain medicines. Pericardial effusion - the buildup of fluid in the sac Cardiac tamponade - a…

Read more about Pericardial Disorders at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Includes

  • Concretio cordis
  • Pericardial calcification

Frequently asked questions

What is ICD-10 code I31.1?
I31.1 is the ICD-10-CM code for "Chronic constrictive pericarditis". It falls under I00-I99 Diseases of the circulatory system.
Is I31.1 a billable code?
Yes — I31.1 is a billable, specific ICD-10-CM code valid for reimbursement.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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