Is I69.91 a billable ICD-10-CM code?

No. I69.91 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does I69.91 sit in the tabular list?

Diseases of the circulatory system (I00-I99), in the block Cerebrovascular diseases (I60-I69).

I69.91

I69.91 — Cognitive deficits following unspecified cerebrovascular disease

Non-billable headerICD-10-CM

I69.91 is a non-billable header ICD-10-CM code for cognitive deficits following unspecified cerebrovascular disease. It cannot be billed on its own: choose one of the more specific child codes below.

Other codes that can never be billed with I69.91

These codes carry an Excludes1 note pointing at I69.91. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading I69.91 alone.

R41.84Other specified cognitive deficit
F06.7Mild neurocognitive disorder due to known physiological condition
G31.84Mild cognitive impairment of uncertain or unknown etiology

Risk adjustment

I69.91 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.

How I69.91 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to I69.91.

Sequelae›disease›cerebrovascular›cognitive deficits

Code to one of these instead I69.91

8 child codes. Green means billable.

Related codes at this level

Codes that share I69.9. If I69.91 is not quite right, the correct code is usually one of these.

Questions about I69.91

Is I69.91 a billable ICD-10-CM code?: No. I69.91 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does I69.91 sit in the tabular list?: Diseases of the circulatory system (I00-I99), in the block Cerebrovascular diseases (I60-I69).