2020 ICD-10-CM Diagnosis Code I34.1

Nonrheumatic mitral (valve) prolapse

    2016 2017 2018 2019 2020 Billable/Specific Code
  • I34.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM I34.1 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of I34.1 - other international versions of ICD-10 I34.1 may differ.
Applicable To
  • Floppy nonrheumatic mitral valve syndrome
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as I34.1. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • Marfan's syndrome (
    ICD-10-CM Diagnosis Code Q87.4

    Marfan's syndrome

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Q87.4-
    )
The following code(s) above I34.1 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to I34.1:
  • I00-I99
    2020 ICD-10-CM Range I00-I99

    Diseases of the circulatory system

    Type 2 Excludes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    • systemic connective tissue disorders (M30-M36)
    • transient cerebral ischemic attacks and related syndromes (G45.-)
    Diseases of the circulatory system
  • I34
    ICD-10-CM Diagnosis Code I34

    Nonrheumatic mitral valve disorders

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • 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.-)
    Nonrheumatic mitral valve disorders
Approximate Synonyms
  • Mitral valve prolapse
  • Mtral valve prolapse
  • Non-rheumatic mitral valve prolapse
Clinical Information
  • A fairly common and often benign valvular heart disorder characterized by redundancy or hooding of mitral valve leaflets so that they prolapse into the left atrium, often causing mitral regurgitation. It is often a symptomless condition but may be marked by varied symptoms (e.g. Chest pain, fatigue, dizziness, dyspnea, or palpitations) leading in some cases to endocarditis or ventricular tachycardia.
  • Abnormal protrusion or billowing of one or both of the leaflets of mitral valve into the left atrium during systole. This allows the backflow of blood into left atrium leading to mitral valve insufficiency; systolic murmurs; or cardiac arrhythmia.
  • Mitral valve prolapse (mvp) occurs when one of your heart's valves doesn't work properly. Mvp is one of the more common heart valve conditions. Most often, it's a lifelong condition that a person is born with. Most people with mvp have no symptoms or problems, need no treatment, and are able to lead normal, active lives. Mvp puts you at risk for infective endocarditis, a kind of heart infection. To prevent it, doctors used to prescribe antibiotics before dental work or certain surgeries. Now, only people at high risk of endocarditis need the antibiotics.if you need treatment for mvp, medicines can help relieve symptoms or prevent complications. Very few people will need surgery to repair or replace the mitral valve.
  • Prolapse of the mitral valve, often with regurgitation, associated with myxomatous proliferation of the leaflets of the mitral valve.
ICD-10-CM I34.1 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 306 Cardiac congenital and valvular disorders with mcc
  • 307 Cardiac congenital and valvular disorders without mcc

Convert I34.1 to ICD-9-CM

Code 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

Diagnosis Index entries containing back-references to I34.1:

ICD-10-CM Codes Adjacent To I34.1
I31.3 Pericardial effusion (noninflammatory)
I31.4 Cardiac tamponade
I31.8 Other specified diseases of pericardium
I31.9 Disease of pericardium, unspecified
I32 Pericarditis in diseases classified elsewhere
I33 Acute and subacute endocarditis
I33.0 Acute and subacute infective endocarditis
I33.9 Acute and subacute endocarditis, unspecified
I34 Nonrheumatic mitral valve disorders
I34.0 Nonrheumatic mitral (valve) insufficiency
I34.1 Nonrheumatic mitral (valve) prolapse
I34.2 Nonrheumatic mitral (valve) stenosis
I34.8 Other nonrheumatic mitral valve disorders
I34.9 Nonrheumatic mitral valve disorder, unspecified
I35 Nonrheumatic aortic valve disorders
I35.0 Nonrheumatic aortic (valve) stenosis
I35.1 Nonrheumatic aortic (valve) insufficiency
I35.2 Nonrheumatic aortic (valve) stenosis with insufficiency
I35.8 Other nonrheumatic aortic valve disorders
I35.9 Nonrheumatic aortic valve disorder, unspecified
I36 Nonrheumatic tricuspid valve disorders

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.