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I34.8

⚠ Non-billable (Header)

Other nonrheumatic mitral valve disorders

Diseases of the circulatory system (I00-I99)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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❌ Excludes1

inherited from I34

Rules from parent category I34: Nonrheumatic mitral valve disorders

  • • mitral valve disease (I05.9)
  • • mitral valve failure (I05.8)
  • • mitral valve stenosis (I05.0)
  • • mitral valve disorder of unspecified cause with diseases of aortic and/or tricuspid valve(s) (I08.-)
  • • mitral valve disorder of unspecified cause with mitral stenosis or obstruction (I05.0)
  • • mitral valve disorder specified as congenital (Q23.2, Q23.9)
  • • mitral valve disorder specified as rheumatic (I05.-)

Child Codes (2)

I34.81Nonrheumatic mitral (valve) annulus calcificationI34.89Other nonrheumatic mitral valve disorders

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Code Information

CodeI34.8
BillableNo — Header code
ParentI34
CategoryDiseases of the circulatory system (I00-I99)
Excludes17 rule(s)
Excludes20 note(s)
Child codes2

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)