Is I34 a billable ICD-10-CM code?

No. I34 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does I34 sit in the tabular list?

Diseases of the circulatory system (I00-I99), in the block Other forms of heart disease (I30-I5A).

What cannot be coded together with I34?

I34 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

I34

I34 — Nonrheumatic mitral valve disorders

Non-billable headerICD-10-CM

I34 is a non-billable header ICD-10-CM code for nonrheumatic mitral valve disorders. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

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.-)

Other codes that can never be billed with I34

These codes carry an Excludes1 note pointing at I34. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading I34 alone.

I05Rheumatic mitral valve diseases
I05.1Rheumatic mitral insufficiency

Risk adjustment

I34 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead I34

5 child codes. Green means billable.

Questions about I34

Is I34 a billable ICD-10-CM code?: No. I34 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does I34 sit in the tabular list?: Diseases of the circulatory system (I00-I99), in the block Other forms of heart disease (I30-I5A).
What cannot be coded together with I34?: I34 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.