I34
⚠ Non-billable
Nonrheumatic mitral valve disorders
ICD-10-CM · FY2026 · Diseases of the Circulatory System
Code
I34
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Diseases of the Circulatory System
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Official coding notes
From CMS's ICD-10-CM Tabular List.
Excludes1 — never code together
- mitral valve disease (I05.9)
- mitral valve failure (I05.8)
- mitral valve stenosis (I05.0)
- mitral valve disorder of unspecified cause with diseases of aortic and/or tricuspid valve(s) (I08.-)
- mitral valve disorder of unspecified cause with mitral stenosis or obstruction (I05.0)
- mitral valve disorder specified as congenital (Q23.2, Q23.9)
- mitral valve disorder specified as rheumatic (I05.-)
Frequently asked questions
What is ICD-10 code I34?
ICD-10-CM code I34 represents Nonrheumatic mitral valve disorders. It is a non-billable header code requiring a more specific subcategory in the Diseases of the Circulatory System chapter, effective October 1, 2025 – September 30, 2026.
Is I34 billable?
No. I34 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is I34 in?
I34 belongs to the Diseases of the Circulatory System chapter (I00–I99) of ICD-10-CM.
Related codes in the I34 category
I34.0
Nonrheumatic mitral (valve) insufficiency
Billable
I34.1
Nonrheumatic mitral (valve) prolapse
Billable
I34.2
Nonrheumatic mitral (valve) stenosis
Billable
I34.8
Other nonrheumatic mitral valve disorders
Non-billable
I34.9
Nonrheumatic mitral valve disorder, unspecified
Billable
I34.81
Nonrheumatic mitral (valve) annulus calcification
Billable
I34.89
Other nonrheumatic mitral valve disorders
Billable
Search all 98,186 ICD-10-CM codes instantly
Search ICDwise →