R00.0

Billable

Tachycardia, unspecified

R00.0 is the ICD-10-CM code for Tachycardia, unspecified. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
R00-R99
Parent
R00
Edition
FY2026

R00-R99 Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified

What this means — in plain language

MedlinePlus · NIH

What is an arrhythmia? An arrhythmia is a problem with the rate or rhythm of your heartbeat. Your heart beats too quickly, too slowly, or with an irregular pattern. Changes in the electrical signals that control your heartbeat cause arrhythmias. When your heart beats faster than normal, it's called tachycardia . When your heart beats too slowly, it's called bradycardia . When the signal to beat comes too early, it's…

Read more about Arrhythmia at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Includes

  • Rapid heart beat
  • Sinoauricular tachycardia NOS
  • Sinus [sinusal] tachycardia NOS

Excludes1 — not coded here

  • inappropriate sinus tachycardia, so stated (I47.11)
  • neonatal tachycardia (P29.11)
  • paroxysmal tachycardia (I47.-)

Medications indicated for this condition

FDA labeling

Drugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.

Frequently asked questions

What is ICD-10 code R00.0?
R00.0 is the ICD-10-CM code for "Tachycardia, unspecified". It falls under R00-R99 Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.
Is R00.0 a billable code?
Yes — R00.0 is a billable, specific ICD-10-CM code valid for reimbursement.
What is excluded from R00.0?
Excludes1 (not coded here): inappropriate sinus tachycardia, so stated (I47.11); neonatal tachycardia (P29.11); paroxysmal tachycardia (I47.-).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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