Is R00 a billable ICD-10-CM code?

No. R00 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does R00 sit in the tabular list?

Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), in the block Symptoms and signs involving the circulatory and respiratory systems (R00-R09).

What cannot be coded together with R00?

R00 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

R00

R00 — Abnormalities of heart beat

Non-billable headerICD-10-CM

R00 is a non-billable header ICD-10-CM code for abnormalities of heart beat. 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.

abnormalities originating in the perinatal period (P29.1-)

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.

specified arrhythmias (I47-I49)

Other codes that can never be billed with R00

These codes carry an Excludes1 note pointing at R00. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading R00 alone.

I47Paroxysmal tachycardia

Risk adjustment

R00 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 R00

5 child codes. Green means billable.

Questions about R00

Is R00 a billable ICD-10-CM code?: No. R00 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does R00 sit in the tabular list?: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), in the block Symptoms and signs involving the circulatory and respiratory systems (R00-R09).
What cannot be coded together with R00?: R00 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.