Is I48.1 a billable ICD-10-CM code?

No. I48.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does I48.1 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 I48.1?

I48.1 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

I48.1

I48.1 — Persistent atrial fibrillation

Non-billable headerICD-10-CM

I48.1 is a non-billable header ICD-10-CM code for persistent atrial fibrillation. 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.

Permanent atrial fibrillation (I48.21)

Other codes that can never be billed with I48.1

These codes carry an Excludes1 note pointing at I48.1. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading I48.1 alone.

I48.20Chronic atrial fibrillation, unspecified

Risk adjustment

I48.1 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 I48.1

2 child codes. Green means billable.

Related codes at this level

Codes that share I48. If I48.1 is not quite right, the correct code is usually one of these.

Questions about I48.1

Is I48.1 a billable ICD-10-CM code?: No. I48.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does I48.1 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 I48.1?: I48.1 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.