ICD-10 Code I47.1 – Supraventricular tachycardia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I47.1 – Supraventricular tachycardia
What it is
I47.1 identifies supraventricular tachycardia, a fast heart rhythm that starts above the ventricles. Use it when the record documents this arrhythmia without a more specific subtype.
Clinical signs
Clinical features vary; refer to documentation. Commonly recorded findings include sudden episodes of rapid regular heartbeat, palpitations, and possible dizziness or shortness of breath.
When to use this code
Use I47.1 when the clinician documents supraventricular tachycardia, SVT, or a supraventricular tachyarrhythmia. It is appropriate for encounter coding when the rhythm is confirmed and no more specific diagnosis is stated. Check documentation if the note only describes tachycardia.
Do not use for
Do not use this code for sinus tachycardia, ventricular tachycardia, or atrial fibrillation/flutter unless the provider specifically documents SVT. If the rhythm type is unclear, check documentation.
Coding tip
Code the documented rhythm exactly and look for a more specific arrhythmia term before defaulting to I47.1.