2025 ICD-10-CM Diagnosis Code I49.02

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Ventricular flutter

  • I49.02 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2025 edition of ICD-10-CM I49.02 became effective on October 1, 2024.
  • This is the American ICD-10-CM version of I49.02 – other international versions of ICD-10 I49.02 may differ.

The following code(s) above I49.02 contain annotation back-references

 that may be applicable to I49.02:

  • I00-I99  Diseases of the circulatory system
  • I49  Other cardiac arrhythmias

Clinical Information

  • A potentially lethal cardiac arrhythmia characterized by an extremely rapid, hemodynamically unstable ventricular tachycardia (150-300 beats/min) with a large oscillating sine-wave appearance. If untreated, ventricular flutter typically progresses to ventricular fibrillation.
  • A ventricular tachyarrhythmia characterized by a high ventricular rate (180 and 250 beats per minute) with a regular rhythm. The electrocardiogram shows large oscillating sine wave-like complexes occurring as a result of qrs complexes and t waves being merged. The p wave is not visible.
  • A ventricular tachyarrhythmia characterized electrocardiographically by smooth undulating waves with qrs complexes merged with t waves, a rate of approximately 250 per minute.

ICD-10-CM I49.02 is grouped within Diagnostic Related Group(s) (MS-DRG v42.0):

  • 308 Cardiac arrhythmia and conduction disorders with mcc
  • 309 Cardiac arrhythmia and conduction disorders with cc
  • 310 Cardiac arrhythmia and conduction disorders without cc/mcc
  • 791 Prematurity with major problems
  • 793 Full term neonate with major problems

Convert I49.02 to ICD-9-CMCode History

  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
  • 2024 (effective 10/1/2023): No change
  • 2025 (effective 10/1/2024): No change

Diagnosis Index entries containing back-references to I49.02:

  • Flutter
    • heartI49.8
      • ventricular I49.02
    • ventricular I49.02
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