Is I16 a billable ICD-10-CM code?

No. I16 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does I16 sit in the tabular list?

Diseases of the circulatory system (I00-I99), in the block Hypertensive diseases (I10-I1A).

I16

I16 — Hypertensive crisis

Non-billable headerICD-10-CM

I16 is a non-billable header ICD-10-CM code for hypertensive crisis. It cannot be billed on its own: choose one of the more specific child codes below.

Code also

Both codes may be needed to describe the encounter fully. Sequencing depends on the reason for the visit.

any identified hypertensive disease (I10-I15, I1A)

Risk adjustment

I16 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 I16

3 child codes. Green means billable.

I16.0Hypertensive urgency
I16.1Hypertensive emergency
I16.9Hypertensive crisis, unspecified

Questions about I16

Is I16 a billable ICD-10-CM code?: No. I16 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does I16 sit in the tabular list?: Diseases of the circulatory system (I00-I99), in the block Hypertensive diseases (I10-I1A).