I40.8Billable
Other acute 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 I40.8?
I40.8 is an ICD-10-CM diagnosis code for Other acute myocarditis.
Is I40.8 a billable code?
Yes. I40.8 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is I40.8 in?
I40.8 falls under Chapter 9: Diseases of the circulatory system.
When did I40.8 become effective?
I40.8 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to I40.8?
I40.8 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.