I05
ICD-10Non-billable categoryRheumatic mitral valve diseases
Official ICD-10-CM descriptor (FY2026)
Rheumatic mitral valve diseases
I05 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Includes
- conditions classifiable to both I05.0 and I05.2-I05.9, whether specified as rheumatic or not
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- mitral valve disease specified as nonrheumatic (I34.-)
- mitral valve disease with aortic and/or tricuspid valve involvement (I08.-)
More specific codes under I05
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.