2025 ICD-10-CM Diagnosis Code I51.1

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Rupture of chordae tendineae, not elsewhere classified

  • I51.1 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 I51.1 became effective on October 1, 2024.
  • This is the American ICD-10-CM version of I51.1 – other international versions of ICD-10 I51.1 may differ.

Type 1 Excludes

  • rupture of chordae tendineae as current complication following acute myocardial infarction (I23.4)

The following code(s) above I51.1 contain annotation back-references

 that may be applicable to I51.1:

  • I00-I99  Diseases of the circulatory system
  • I51  Complications and ill-defined descriptions of heart disease

Approximate Synonyms

  • Rupture of chordae tendineae

ICD-10-CM I51.1 is grouped within Diagnostic Related Group(s) (MS-DRG v42.0):

  • 306 Cardiac congenital and valvular disorders with mcc
  • 307 Cardiac congenital and valvular disorders without mcc

Convert I51.1 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 I51.1:

Diagnosis Index entries containing back-references to I51.1:

  • Laceration
    • chordae tendinae NEC I51.1
  • Rupture, ruptured
    • chordae tendineae NEC I51.1
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