2025 ICD-10-CM Diagnosis Code I05.9

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Rheumatic mitral valve disease, unspecified

  • I05.9 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 I05.9 became effective on October 1, 2024.
  • This is the American ICD-10-CM version of I05.9 – other international versions of ICD-10 I05.9 may differ.

Applicable To

  • Rheumatic mitral (valve) disorder (chronic) NOS

The following code(s) above I05.9 contain annotation back-references

 that may be applicable to I05.9:

  • I00-I99  Diseases of the circulatory system
  • I05  Rheumatic mitral valve diseases

Approximate Synonyms

  • Maternal mitral valve disorder in pregnancy antepartum (before childbirth)
  • Mitral valve disorder
  • Mitral valve disorder in childbirth
  • Mitral valve disorder in pregnancy
  • Mitral valve disorder postpartum
  • Postpartum (after childbirth) mitral valve disorder
  • Rheumatic disease of mitral valve
  • Rheumatic mitral disease

ICD-10-CM I05.9 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 I05.9 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 I05.9:

  • Type 1 Excludes: I34
  • Includes: I05

Diagnosis Index entries containing back-references to I05.9:

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