Non-Billable / Non-Specific Code
ICD-10-CM R00 is the diagnosis code for Abnormalities of heart beat. This code falls under the section "Symptoms and signs involving the circulatory and respiratory systems" within Chapter 18 â Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as R00. They are mutually exclusive:
The following conditions are not included in R00. If the patient has both, code each condition separately:
Understanding where R00 sits in the ICD-10-CM classification helps ensure proper coding:
No, R00 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
R00 is the ICD-10-CM diagnosis code for "Abnormalities of heart beat". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
R00 is located in Section R00-R09 â "Symptoms and signs involving the circulatory and respiratory systems" within Chapter 18 of the ICD-10-CM Tabular List.
R00 has 5 sub-code(s) that provide more specific detail: R00.0, R00.1, R00.2, R00.8, R00.9.
Use R00 when the patients documented diagnosis matches "Abnormalities of heart beat" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Abnormalities of heart beat is R00.
No, R00 is non-billable. Use a more specific sub-code for primary diagnosis billing.
R00 is in Chapter 18 of the ICD-10-CM Tabular List.
Type 1 Excludes for R00 include: abnormalities originating in the perinatal period (P29.1-).
Yes, R00 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.