ICD-10 R00.0
Billable / SpecificTachycardia, unspecified
About ICD-10-CM R00.0
ICD-10-CM code R00.0 represents Tachycardia, unspecified. This is a billable/specific code in the Symptoms, Signs, and Abnormal Findings chapter (block R00). The 2026 edition of ICD-10-CM R00.0 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under R00.0. Per CMS ICD-10-CM Tabular 2026.
- Rapid heart beat
- Sinoauricular tachycardia NOS
- Sinus [sinusal] tachycardia NOS
Type 1 Excludes
Pure excludes, these codes can never be coded together with R00.0. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- inappropriate sinus tachycardia, so stated (I47.11)
- neonatal tachycardia (P29.11)
- paroxysmal tachycardia (I47.-)
Medicare LCD Coverage for R00.0
Local Coverage Determinations (LCDs) from CMS MACs that list R00.0 as a covered diagnosis.
Showing top 10 of 226 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing R00.0.
1 Aetna
2 Cigna
5 Medicare
CPT Codes Commonly Billed with R00.0
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 93015 Stress test — chest pain, palpitations, syncope, known CAD Cardiovascular Disease
- 99203 New patient office visit — common complaints plus chronic conditions: HTN, diabetes, hyperlipidemia, asthma, GERD, back pain, migraine, tachycardia, prediabetes Primary Care
- 99204 New patient office visit — multiple chronic conditions: HTN, T2DM, hyperlipidemia, asthma, anxiety, depression, obesity, IBS, COPD, thyroid, anemia, CAD, sleep apnea, psoriasis, RA Primary Care
- 99213 Established patient — HTN follow-up, diabetes management, hyperlipidemia, asthma, anxiety, common complaints, back pain, GERD, migraine, acne, joint pain, prediabetes, obesity, anemia, hypothyroid, fatigue Primary Care
- 99214 Established patient — moderate complexity: uncontrolled HTN, diabetes with complications, multiple chronic conditions, COPD, AFib, CKD, sleep apnea, chronic pain, depression Primary Care
- 93000 EKG 12-lead — tachycardia, bradycardia, palpitations, HTN, CAD, AFib, arrhythmia, chest pain, syncope, cardiomyopathy, AV block, bundle branch block, SVT, VT, diabetes screening, abnormal EKG Cardiology
- 93010 EKG interpretation only — same dx as 93000 Cardiology
- 93015 Stress test cardiovascular — chest pain, CAD, angina, tachycardia, dyspnea, HTN, diabetes, syncope, cardiac screening Cardiology
Convert R00.0 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| R00.0 | 7850 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To R00.0
Other codes in section R00-R09 (Symptoms and signs involving the circulatory and respiratory systems).
ICD-10 R00.0, Billing FAQ
Is ICD-10 code R00.0 billable? +
Yes, R00.0 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to R00.0? +
ICD-10 R00.0 includes: Rapid heart beat; Sinoauricular tachycardia NOS; Sinus [sinusal] tachycardia NOS.
What codes are Type 1 Excludes for R00.0? +
Type 1 Excludes (never code together with R00.0): inappropriate sinus tachycardia, so stated (I47.11); neonatal tachycardia (P29.11); paroxysmal tachycardia (I47.-)
What CPT codes are commonly billed with R00.0? +
Procedures frequently paired with R00.0 include: 93015, 99203, 99204, 99213, 99214.
What ICD-9 codes does R00.0 map to? +
Per CMS GEMs, R00.0 maps to ICD-9 codes: 7850. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 2, 2026.
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