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  6. 2024 ICD-10-CM Code I47.21

2024 ICD-10-CM Diagnosis Code I47.21

Torsades de pointes

ICD-10-CM Code:
I47.21
ICD-10 Code for:
Torsades de pointes
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Not chronic
Code Navigator:

Code Classification

  • Diseases of the circulatory system
    (I00–I99)
    • Other forms of heart disease
      (I30-I5A)
      • Paroxysmal tachycardia
        (I47)

I47.21 is a billable diagnosis code used to specify a medical diagnosis of torsades de pointes. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Torsade de pointes with short coupling interval syndrome
  • Torsades de pointe caused by drug
  • Torsades de pointes
  • Torsades de pointes
  • Ventricular tachycardia, polymorphic
  • Ventricular tachycardia, polymorphic
  • Ventricular tachycardia, polymorphic

Clinical Classification

Clinical Information

  • Torsades de Pointes

    a malignant form of polymorphic ventricular tachycardia that is characterized by heart rate between 200 and 250 beats per minute, and qrs complexes with changing amplitude and twisting of the points. the term also describes the syndrome of tachycardia with prolonged ventricular repolarization, long qt intervals exceeding 500 milliseconds or bradycardia. torsades de pointes may be self-limited or may progress to ventricular fibrillation.

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Code Also

Code Also
A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
  • , if applicable, long QT syndrome I45.81

Use Additional Code

Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
  • code for adverse effect, if applicable, to identify drug T36 T50

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Replacement Code

I4721 replaces the following previously assigned ICD-10-CM code(s):

  • I47.2 - Ventricular tachycardia

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - Code Added, effective from 10/1/2022 through 9/30/2023

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.