I05.9

I05.9: Rheumatic mitral valve disease, unspecified

Billable / specific codeICD-10-CM

I05.9 is a billable, specific ICD-10-CM code for rheumatic mitral valve disease, unspecified. It is valid for submission on a claim.

Check I05.9 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Rheumatic mitral (valve) disorder (chronic) NOS

Excludes1 inherited from the categories above I05.9

A category’s note binds every code beneath it.

Written on I05: Rheumatic mitral valve diseases

mitral valve disease specified as nonrheumatic (I34.-)
mitral valve disease with aortic and/or tricuspid valve involvement (I08.-)

Other codes that can never be billed with I05.9

Their own Excludes1 notes name this code, so the conflict is not listed above.

I34Nonrheumatic mitral valve disorders

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

I05.9 is named in 8 Medicare coverage policies: 8 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A52850Billing and Coding: Cardiac Catheterization and Coronary Angiography
A52868Billing and Coding: Transesophageal Echocardiography (TEE)
A56500Billing and Coding: Cardiac Catheterization and Coronary Angiography
A56625Billing and Coding: Echocardiography

Alphabetic index entries that lead here

Disease, diseased›mitral(valve)
Endocarditis›mitral(chronic) (double) (fibroid) (heart) (inactive) (valve) (with chorea)
Lesion›mitral
Disease, diseased›heart›mitral
Endocarditis›mitral›with›rheumatic fever›inactive or quiescent(with chorea)
Fever›rheumatic›inactive or quiescent with›endocarditis›mitral(valve)

Code history

Unchanged in every release from FY2024 to FY2027.