ICD-10 Diagnosis Code I51.9

Heart disease, unspecified

Diagnosis Code I51.9

ICD-10: I51.9
Short Description: Heart disease, unspecified
Long Description: Heart disease, unspecified
This is the 2017 version of the ICD-10-CM diagnosis code I51.9

Code Classification
  • Diseases of the circulatory system
    • Other forms of heart disease (I30-I52)
      • Complications and ill-defined descriptions of heart disease (I51)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code I51.9 is grouped in the following Diagnostic Related Group(s) (MS-DRG v33.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Acute heart disease
  • Cachexia
  • Cardiac cachexia
  • Cardiac cirrhosis
  • Cardiac complication
  • Cardiac disease in pregnancy
  • Cardiac portal cirrhosis
  • Chronic heart disease
  • Disorder of left atrium as complication of procedure
  • Disorder of right cardiac ventricle
  • Heart disease
  • Heart disease caused by ionizing radiation
  • Heart disease during pregnancy
  • Heart disease in mother complicating childbirth
  • Heart disease in mother complicating pregnancy, childbirth AND/OR puerperium
  • Hypoxia-associated cirrhosis
  • Portal cirrhosis

Information for Patients

Heart Diseases

Also called: Cardiac diseases

If you're like most people, you think that heart disease is a problem for others. But heart disease is the number one killer in the U.S. It is also a major cause of disability. There are many different forms of heart disease. The most common cause of heart disease is narrowing or blockage of the coronary arteries, the blood vessels that supply blood to the heart itself. This is called coronary artery disease and happens slowly over time. It's the major reason people have heart attacks.

Other kinds of heart problems may happen to the valves in the heart, or the heart may not pump well and cause heart failure. Some people are born with heart disease.

You can help reduce your risk of heart disease by taking steps to control factors that put you at greater risk:

  • Control your blood pressure
  • Lower your cholesterol
  • Don't smoke
  • Get enough exercise

NIH: National Heart, Lung, and Blood Institute

  • Aspirin and heart disease
  • Being active when you have heart disease
  • Cardiac catheterization
  • Electrocardiogram
  • Exercise stress test
  • Heart disease - risk factors
  • Heart disease and depression
  • Understanding cardiovascular disease
  • Warning signs and symptoms of heart disease

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