2025 ICD-10-CM Diagnosis Code I46.2

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Cardiac arrest due to underlying cardiac condition

  • I46.2 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 I46.2 became effective on October 1, 2024.
  • This is the American ICD-10-CM version of I46.2 – other international versions of ICD-10 I46.2 may differ.

Code First

  • underlying cardiac condition

The following code(s) above I46.2 contain annotation back-references

 that may be applicable to I46.2:

  • I00-I99  Diseases of the circulatory system
  • I46  Cardiac arrest

Approximate Synonyms

  • Cardiac arrest due to cardiac disorder

ICD-10-CM I46.2 is grouped within Diagnostic Related Group(s) (MS-DRG v42.0):

  • 296 Cardiac arrest, unexplained with mcc
  • 297 Cardiac arrest, unexplained with cc
  • 298 Cardiac arrest, unexplained without cc/mcc
  • 791 Prematurity with major problems
  • 793 Full term neonate with major problems

Convert I46.2 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

Code annotations containing back-references to I46.2:

Diagnosis Index entries containing back-references to I46.2:

  • Arrest, arrested
    • cardiacI46.9
      • due to
        • cardiac condition I46.2
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