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R00 Abnormalities of heart beat

ICD-10-CM category R00 sits in Chapter 18 (Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified, R00-R99). It contains 5 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.

Billable codes in R00

CodeDescription
R00.0Tachycardia, unspecified
R00.1Bradycardia, unspecified
R00.2Palpitations
R00.8Other abnormalities of heart beat
R00.9Unspecified abnormalities of heart beat

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