ICD-10-CM>R00-R99>R00-R09>R00R00Abnormalities of heart beatNon-Billable/Non-SpecificType 1 Excludesabnormalities originating in the perinatal period (P29.1-)Type 2 Excludesspecified arrhythmias (I47-I49)CodesR00.0Tachycardia, unspecifiedR00.1Bradycardia, unspecifiedR00.2PalpitationsR00.8Other abnormalities of heart beatR00.9Unspecified abnormalities of heart beat