424.0 MITRAL VALVE DISORDER


Code Information

Diagnosis Code: 424.0

Short Description: Mitral valve disorder

Long Description: Mitral valve disorders

Code Classification:

  • Diseases of the circulatory system (390–459)
    • Other forms of heart disease (420-429)
      • 424 Other diseases of endocardium
        • 424.0 Mitral valve disorder

Code Version: 2015 ICD-9-CM


References to Index of Diseases and Injuries

The code 424.0 has the following ICD-9-CM references to the Index of Diseases and Injuries
  • Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (ruptured) (saccular) (varicose) 442.9
    • mitral (heart) (valve) 424.0
  • Arteriosclerosis, arteriosclerotic (artery) (deformans) (diffuse) (disease) (endarteritis) (general) (obliterans) (obliterative) (occlusive) (senile) (with calcification) 440.9
    • heart (disease) - see also Arteriosclerosis, coronary
      • valve 424.99
        • mitral 424.0
  • Atheroma, atheromatous (see also Arteriosclerosis) 440.9
    • mitral (valve) 424.0
  • Ballooning posterior leaflet syndrome 424.0
  • Barlow's syndrome (meaning mitral valve prolapse) 424.0
  • Disorder - see also Disease
    • mitral valve 424.0
  • Endocarditis (chronic) (indeterminate) (interstitial) (marantic) (nonbacterial thrombotic) (residual) (sclerotic) (sclerous) (senile) (valvular) 424.90
    • mitral (chronic) (double) (fibroid) (heart) (inactive) (valve) (with chorea) 394.9
      • arteriosclerotic 424.0
      • hypertensive 424.0
      • nonrheumatic 424.0
        • acute or subacute 421.9
  • Floppy
    • valve syndrome (mitral) 424.0
  • Incompetency, incompetence, incompetent
    • annular
      • mitral (valve) - (see also Insufficiency, mitral) 424.0
  • Insufficiency, insufficient
    • mitral (valve) 424.0
      • with
        • aortic (valve) disease 396.3
          • insufficiency, incompetence, or regurgitation 396.3
          • stenosis or obstruction 396.2
        • obstruction or stenosis 394.2
          • with aortic valve disease 396.8
      • congenital 746.6
      • rheumatic 394.1
        • with
          • aortic (valve) disease 396.3
            • insufficiency, incompetence, or regurgitation 396.3
            • stenosis or obstruction 396.2
          • obstruction or stenosis 394.2
            • with aortic valve disease 396.8
        • active or acute 391.1
          • with chorea, rheumatic (Sydenham's) 392.0
      • specified cause, except rheumatic 424.0
  • Prolapse, prolapsed
    • mitral valve 424.0
  • Sclerosis, sclerotic
    • annularis fibrosi
      • mitral 424.0
    • Dewitzky's
      • mitral 424.0
  • Stenosis (cicatricial) - see also Stricture
    • mitral (valve) (chronic) (inactive) 394.0
      • specified cause, except rheumatic 424.0
  • Stricture (see also Stenosis) 799.89
    • mitral (valve) (see also Stenosis, mitral) 394.0
      • specified cause, except rheumatic 424.0
  • Syndrome - see also Disease
    • ballooning posterior leaflet 424.0
    • Barlow's (mitral valve prolapse) 424.0
    • floppy
      • valve (mitral) 424.0
    • mitral
      • valve prolapse 424.0

Crosswalk Information

The code 424.0 converts into the following ICD-10 code(s):
ICD-9 Code ICD-10 Code ICD-10 Description
424.0 Right Arrow I34.0 Nonrheumatic mitral (valve) insufficiency
I34.8 Other nonrheumatic mitral valve disorders
This ICD-9 to ICD-10 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-9 Code ICD-9 Description
424.1 Aortic valve disorders
424.2 Tricuspid valve disorders, specified as nonrheumatic
424.3 Pulmonary valve disorders
424.90 Endocarditis, valve unspecified, unspecified cause
424.91 Endocarditis in diseases classified elsewhere
424.99 Other endocarditis, valve unspecified


This page was last updated on: 10/1/2014