2025 ICD-10-CM Diagnosis Code I05.0

Rheumatic mitral stenosis

• I05.0 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 I05.0 became effective on October 1, 2024.
• This is the American ICD-10-CM version of I05.0 – other international versions of ICD-10 I05.0 may differ.

Applicable To

• Mitral (valve) obstruction (rheumatic)

The following code(s) above I05.0 contain annotation back-references

 that may be applicable to I05.0:

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

Approximate Synonyms

• Mitral stenosis
• Mitral valve stenosis

Clinical Information

• Narrowing of the left atrioventricular mitral orifice.
• Rheumatic disease causing diffuse thickening of the mitral valve leaflets by fibrous tissue or calcific deposits.

ICD-10-CM I05.0 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 I05.0 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 I05.0:

• Type 1 Excludes: I34, I34
• Includes: I05

Diagnosis Index entries containing back-references to I05.0:

• Stenosis, stenotic (cicatricial) – see also Stricture
  • mitral (chronic) (inactive) (valve) I05.0