Is I79 a billable ICD-10-CM code?

No. I79 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does I79 sit in the tabular list?

Diseases of the circulatory system (I00-I99), in the block Diseases of arteries, arterioles and capillaries (I70-I79).

I79

I79 — Disorders of arteries, arterioles and capillaries in diseases classified elsewhere

Non-billable headerICD-10-CM

I79 is a non-billable header ICD-10-CM code for disorders of arteries, arterioles and capillaries in diseases classified elsewhere. It cannot be billed on its own: choose one of the more specific child codes below.

Risk adjustment

I79 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 I79

3 child codes. Green means billable.

I79.0Aneurysm of aorta in diseases classified elsewhere
I79.1Aortitis in diseases classified elsewhere
I79.8Other disorders of arteries, arterioles and capillaries in diseases classified elsewhere

Questions about I79

Is I79 a billable ICD-10-CM code?: No. I79 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does I79 sit in the tabular list?: Diseases of the circulatory system (I00-I99), in the block Diseases of arteries, arterioles and capillaries (I70-I79).