Is I49 a billable ICD-10-CM code?

No. I49 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does I49 sit in the tabular list?

Diseases of the circulatory system (I00-I99), in the block Other forms of heart disease (I30-I5A).

I49

I49 — Other cardiac arrhythmias

Non-billable headerICD-10-CM

I49 is a non-billable header ICD-10-CM code for other cardiac arrhythmias. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes2 — not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

bradycardia NOS (R00.1)
neonatal dysrhythmia (P29.1-)
sinoatrial bradycardia (R00.1)
sinus bradycardia (R00.1)
vagal bradycardia (R00.1)

Code first

The underlying condition must be sequenced before this code.

cardiac arrhythmia complicating:
abortion or ectopic or molar pregnancy (O00-O07, O08.8)
obstetric surgery and procedures (O75.4)

Risk adjustment

I49 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 I49

8 child codes. Green means billable.

Questions about I49

Is I49 a billable ICD-10-CM code?: No. I49 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does I49 sit in the tabular list?: Diseases of the circulatory system (I00-I99), in the block Other forms of heart disease (I30-I5A).