I05Header code — not billable

Rheumatic mitral valve diseases

Chapter
9. Diseases of the circulatory system
Category
I05
Effective date
October 1, 2026

Related codes in category I05

I05.0Rheumatic mitral stenosisYesI05.1Rheumatic mitral insufficiencyYesI05.2Rheumatic mitral stenosis with insufficiencyYesI05.8Other rheumatic mitral valve diseasesYesI05.9Rheumatic mitral valve disease, unspecifiedYes

Frequently asked questions

What is ICD-10 code I05?

I05 is an ICD-10-CM diagnosis code for Rheumatic mitral valve diseases.

Is I05 a billable code?

No. I05 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is I05 in?

I05 falls under Chapter 9: Diseases of the circulatory system.

When did I05 become effective?

I05 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to I05?

I05 belongs to category I05, which includes 5 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.