2026 ICD-10-CM Diagnosis Code I47.2

Ventricular tachycardia

ICD-10-CM Code:: I47.2
ICD-10 Code for:: Ventricular tachycardia
Is Billable?: Not Valid for Submission
Chronic Condition Indicator: ^[1]: Not chronic
Code Navigator:

I47.2 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of ventricular tachycardia. The code is not specific and is NOT valid for the year 2026 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

The code is commonly used in cardiology medical specialties to specify clinical concepts such as abnormalities of heart rhythm.

Table of Contents

Code Information
Specific Coding
Clinical Classification
Tabular List of Diseases and Injuries
Convert to ICD-9 Code
Patient Education
Other Codes Used Similar Conditions
Code History

Specific Coding Applicable to Ventricular tachycardia

Non-specific codes like I47.2 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for ventricular tachycardia:

Use I47.20 for Ventricular tachycardia, unspecified - BILLABLE CODE
Use I47.21 for Torsades de pointes - BILLABLE CODE
Use I47.29 for Other ventricular tachycardia - BILLABLE CODE

Code Classification

Diseases of the circulatory system
I00–I99
- Other forms of heart disease
  I30-I5A
  - Paroxysmal tachycardia
    I47

Clinical Classification

Clinical Classifications group individual ICD-10-CM diagnosis codes into broader, clinically meaningful categories. These categories help simplify complex data by organizing related conditions under common clinical themes.

They are especially useful for data analysis, reporting, and clinical decision-making. Even when diagnosis codes differ, similar conditions can be grouped together based on their clinical relevance. Each category is assigned a unique CCSR code that represents a specific clinical concept, often tied to a body system or medical specialty.

Cardiac dysrhythmias

CCSR Code: CIR017

Inpatient Default: Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis.

Outpatient Default: Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.

Convert I47.2 to ICD-9-CM

Below are the ICD-9 codes that most closely match this ICD-10 code, based on the General Equivalence Mappings (GEMs). This ICD-10 to ICD-9 crosswalk tool is helpful for coders who need to reference legacy diagnosis codes for audits, historical claims, or approximate code comparisons.

Parox ventric tachycard

ICD-9-CM: 427.1

Approximate Flag - The approximate mapping means this ICD-10 code does not have an exact ICD-9 equivalent. The matched code is the closest available option, but it may not fully capture the original diagnosis or clinical intent.

View Conversion

Patient Education

Arrhythmia

What is an arrhythmia?

An arrhythmia is a problem with the rate or rhythm of your heartbeat. Your heart beats too quickly, too slowly, or with an irregular pattern. Changes in the electrical signals that control your heartbeat cause arrhythmias.

When your heart beats faster than normal, it's called tachycardia.
When your heart beats too slowly, it's called bradycardia.
When the signal to beat comes too early, it's called a premature or extra heartbeat. It may feel like your heart skipped a beat.

There are many types of arrhythmias. Arrhythmias may affect the upper or lower chamber of your heart. The most common type of arrhythmia is atrial fibrillation, which causes an irregular and fast heartbeat.

Some arrhythmias are harmless, such as when your heart rate speeds up during exercise and slows down when you sleep. But if you have a frequent irregular rhythm, it may mean your heart isn't pumping enough blood into your body. Getting treatment and following a heart-healthy lifestyle can help control arrhythmias. It may also help prevent heart damage that can trigger some heart arrhythmias.

What causes an arrhythmia?

Many factors can affect your heart's rhythm, such as having had a heart attack, smoking, congenital heart defects, and stress. Other factors that could increase your risk for some types of arrhythmias could include if you:

Have a family history of arrhythmias.
Have certain health conditions, which can include heart and blood vessel diseases, lung diseases, kidney diseases, obesity, and sleep apnea.
Are an older adult.
Have had recent surgery for your heart, lungs, or throat.
Take certain medicines for other health conditions.
Use illegal drugs.

If you have risk factors, some situations that make your heart work harder, raise your blood pressure, or cause strong emotional stress may trigger an arrhythmia.

What are the symptoms of an arrhythmia?

You may not have any noticeable symptoms of an arrhythmia. Your provider may find an arrhythmia during your routine checkup. Symptoms of an arrhythmia can include:

Fast or slow heartbeat
Skipping, fluttering, or pounding heartbeats
Chest pain or discomfort
Dizziness or fainting
Shortness of breath
Sweating
Tiredness or weakness

Seek emergency medical care if you have chest pain, shortness of breath, or think you are having a heart attack.

How is an arrhythmia diagnosed?

To find out if you have an arrhythmia, your health care provider may order an electrocardiogram (EKG). This test records your heart's electrical activity and is the most common for finding an arrhythmia. Your provider may also:

Ask about your medical history, including your symptoms and lifestyle habits.
Do a physical exam, which includes checking your heartbeat and pulse.
Order blood tests and other heart tests.
Check your legs or feet for swelling.
Look for signs of other health conditions that could cause an arrythmia, such as thyroid disease.

What are the treatments for an arrhythmia?

Treatment may include medicines, an implantable cardioverter-defibrillator (ICD) or pacemaker, or sometimes surgery. Your provider may also recommend avoiding activities that may trigger your arrhythmia.

The goal of treatment is to restore a normal heart rhythm. If not treated, arrhythmias can damage your heart, brain, and other organs and could be life-threatening.

Can arrhythmias be prevented?

To help prevent an arrhythmia, your provider may suggest that you make heart-healthy lifestyle changes and treat health conditions that may cause arrhythmias.

NIH: National Heart, Lung, and Blood Institute

[Learn More in MedlinePlus]

Catecholaminergic polymorphic ventricular tachycardia

Catecholaminergic polymorphic ventricular tachycardia (CPVT) is a condition characterized by an abnormal heart rhythm (arrhythmia). As the heart rate increases in response to physical activity or emotional stress, it can trigger an abnormally fast heartbeat called ventricular tachycardia. Episodes of ventricular tachycardia can cause light-headedness, dizziness, and fainting (syncope). In people with CPVT, these episodes typically begin in childhood.

If CPVT is not recognized and treated, an episode of ventricular tachycardia may cause the heart to stop beating (cardiac arrest), leading to sudden death. Researchers suspect that CPVT may be a significant cause of sudden death in children and young adults without recognized heart abnormalities.