R00.9Billable

Unspecified abnormalities of heart beat

Chapter
18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
Category
R00
Effective date
October 1, 2026

Related codes in category R00

R00Abnormalities of heart beatR00.0Tachycardia, unspecifiedYesR00.1Bradycardia, unspecifiedYesR00.2PalpitationsYesR00.8Other abnormalities of heart beatYes

Frequently asked questions

What is ICD-10 code R00.9?

R00.9 is an ICD-10-CM diagnosis code for Unspecified abnormalities of heart beat.

Is R00.9 a billable code?

Yes. R00.9 is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is R00.9 in?

R00.9 falls under Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.

When did R00.9 become effective?

R00.9 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to R00.9?

R00.9 belongs to category R00, which includes 5 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.