Torsades de pointes
ICD-10 I47.21 is a billable code used to indicate a diagnosis of torsades de pointes.
Torsades de pointes (TdP) is a specific form of polymorphic ventricular tachycardia characterized by a distinctive pattern of QRS complexes that appear to twist around the baseline on an electrocardiogram (ECG). This arrhythmia is often associated with a prolonged QT interval, which can be congenital or acquired due to various factors such as medications, electrolyte imbalances, or underlying heart conditions. Clinically, TdP can present with symptoms ranging from palpitations and dizziness to syncope or sudden cardiac arrest. The anatomy involved primarily includes the ventricles of the heart, where abnormal electrical activity disrupts normal cardiac rhythm. Disease progression can lead to more severe arrhythmias or even ventricular fibrillation if not promptly treated. Diagnostic considerations include a thorough patient history, ECG analysis, and possibly electrophysiological studies to determine the underlying cause of the prolonged QT interval. Management may involve addressing the precipitating factors, administering magnesium sulfate, or using antiarrhythmic medications, and in some cases, implantable cardioverter-defibrillators (ICDs) may be indicated.
Standard ICD-10-CM documentation requirements apply
Various clinical presentations within this specialty area
Follow specialty-specific billing guidelines
Standard ICD-10-CM documentation requirements apply
Various clinical presentations within this specialty area
Follow specialty-specific billing guidelines
I47.21 specifically covers Torsades de pointes, which may arise from congenital long QT syndrome, drug-induced QT prolongation, or electrolyte disturbances such as hypokalemia or hypomagnesemia.
I47.21 should be used when the clinical presentation aligns with Torsades de pointes, particularly when there is evidence of a prolonged QT interval and the characteristic ECG findings. Related codes may apply if the arrhythmia is stable or if other types of ventricular tachycardia are present.
Documentation should include a detailed ECG report showing the characteristic twisting pattern, clinical notes on the patient's symptoms, history of QT prolongation, and any relevant lab results indicating electrolyte levels.
