I48
I48 — Atrial fibrillation and flutter
Non-billable headerICD-10-CM
I48 is a non-billable header ICD-10-CM code for atrial fibrillation and flutter. It cannot be billed on its own: choose one of the more specific child codes below.
Other codes that can never be billed with I48
These codes carry an Excludes1 note pointing at I48. 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 alone.
Risk adjustment
I48 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
6 child codes. Green means billable.
Questions about I48
- Is I48 a billable ICD-10-CM code?
- No. I48 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does I48 sit in the tabular list?
- Diseases of the circulatory system (I00-I99), in the block Other forms of heart disease (I30-I5A).