ICD-10 R00
Non-Billable HeaderAbnormalities of heart beat
About ICD-10-CM R00
ICD-10-CM code R00 represents Abnormalities of heart beat. This is a non-billable header code in the Symptoms, Signs, and Abnormal Findings chapter (block R00). The 2026 edition of ICD-10-CM R00 became effective on October 1, 2025. Non-billable codes cannot be used as a primary or secondary diagnosis on a claim, use a more specific child code instead.
Type 1 Excludes
Pure excludes, these codes can never be coded together with R00. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- abnormalities originating in the perinatal period (P29.1-)
Type 2 Excludes
Not included here, the excluded code is not part of R00, but a patient may have both conditions at the same time. Both codes may be coded together when applicable.
- specified arrhythmias (I47-I49)
Medicare LCD Coverage for R00
Local Coverage Determinations (LCDs) from CMS MACs that list R00 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing R00.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but R00 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with R00
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 93000 Electrocardiogram for chest pain evaluation Internal Medicine
- 93010 Exercise stress test for chest pain evaluation Internal Medicine
- 93015 Stress test for chest pain evaluation Cardiovascular Disease
- 93563 Echocardiogram for chest pain evaluation Cardiovascular Disease
- 93565 Transesophageal echocardiogram for chest pain evaluation Cardiovascular Disease
- 93501 Echocardiogram for chest pain evaluation Cardiovascular Disease
- 93598 Intravascular ultrasound for chest pain evaluation Cardiovascular Disease
- 93613 Cardiac resynchronization therapy for heart failure Cardiovascular Disease
- 93618 Implantable cardioverter-defibrillator for ventricular tachycardia Cardiovascular Disease
- 93750 Pacemaker insertion for bradycardia Cardiovascular Disease
Codes Adjacent To R00
Other codes in section R00-R09 (Symptoms and signs involving the circulatory and respiratory systems).
ICD-10 R00, Billing FAQ
Is ICD-10 code R00 billable? +
No, R00 is a non-billable header code. Use a more specific child code from block R00 when submitting claims.
What codes are Type 1 Excludes for R00? +
Type 1 Excludes (never code together with R00): abnormalities originating in the perinatal period (P29.1-)
What codes are Type 2 Excludes for R00? +
Type 2 Excludes (may be coded together when both conditions exist): specified arrhythmias (I47-I49)
What CPT codes are commonly billed with R00? +
Procedures frequently paired with R00 include: 93000, 93010, 93015, 93563, 93565.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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