I40.1Billable

Isolated myocarditis

Chapter
9. Diseases of the circulatory system
Category
I40
Effective date
October 1, 2026

Related codes in category I40

Frequently asked questions

What is ICD-10 code I40.1?

I40.1 is an ICD-10-CM diagnosis code for Isolated myocarditis.

Is I40.1 a billable code?

Yes. I40.1 is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is I40.1 in?

I40.1 falls under Chapter 9: Diseases of the circulatory system.

When did I40.1 become effective?

I40.1 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to I40.1?

I40.1 belongs to category I40, which includes 4 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.