ICD-10 Diagnosis Code I45.81

Long QT syndrome

Diagnosis Code I45.81

ICD-10: I45.81
Short Description: Long QT syndrome
Long Description: Long QT syndrome
This is the 2017 version of the ICD-10-CM diagnosis code I45.81

Valid for Submission
The code I45.81 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Diseases of the circulatory system (I00–I99)
    • Other forms of heart disease (I30-I52)
      • Other conduction disorders (I45)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code I45.81 is grouped in the following Diagnostic Related Group(s) (MS-DRG V34.0)

  • 308 - CARDIAC ARRHYTHMIA AND CONDUCTION DISORDERS WITH MCC
  • 309 - CARDIAC ARRHYTHMIA AND CONDUCTION DISORDERS WITH CC
  • 310 - CARDIAC ARRHYTHMIA AND CONDUCTION DISORDERS WITHOUT CC/MCC

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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.

Synonyms
  • Acquired long QT syndrome
  • Andersen Tawil syndrome
  • Cardiac arrhythmia associated with genetic disorder
  • Cardiac arrhythmia associated with genetic disorder
  • Congenital anomaly of ear with impairment of hearing
  • Congenital conduction defect
  • Congenital long QT syndrome
  • Congenital long QT syndrome
  • Finding of electrocardiogram QT interval
  • Jervell and Lange-Nielsen syndrome
  • Long QT syndrome
  • Long QT syndrome
  • Long QT syndrome with genetic marker
  • Long QT syndrome with genetic marker
  • Prolonged QT interval
  • Romano-Ward syndrome

Information for Patients


Arrhythmia

Also called: Irregular heartbeat

An arrhythmia is a problem with the rate or rhythm of your heartbeat. It means that your heart beats too quickly, too slowly, or with an irregular pattern. When the heart beats faster than normal, it is called tachycardia. When the heart beats too slowly, it is called bradycardia. The most common type of arrhythmia is atrial fibrillation, which causes an irregular and fast heart beat.

Many factors can affect your heart's rhythm, such as having had a heart attack, smoking, congenital heart defects, and stress. Some substances or medicines may also cause arrhythmias.

Symptoms of arrhythmias include

  • Fast or slow heart beat
  • Skipping beats
  • Lightheadedness or dizziness
  • Chest pain
  • Shortness of breath
  • Sweating

Your doctor can run tests to find out if you have an arrhythmia. Treatment to restore a normal heart rhythm may include medicines, an implantable cardioverter-defibrillator (ICD) or pacemaker, or sometimes surgery.

NIH: National Heart, Lung, and Blood Institute

  • Arrhythmias (Medical Encyclopedia)
  • Atrial fibrillation or flutter (Medical Encyclopedia)
  • Cardiac ablation procedures (Medical Encyclopedia)
  • Ectopic heartbeat (Medical Encyclopedia)
  • Electrocardiogram (Medical Encyclopedia)
  • Exercise stress test (Medical Encyclopedia)
  • Heart palpitations (Medical Encyclopedia)
  • Holter monitor (24h) (Medical Encyclopedia)
  • Paroxysmal supraventricular tachycardia (PSVT) (Medical Encyclopedia)
  • Ventricular tachycardia (Medical Encyclopedia)
  • Wolff-Parkinson-White syndrome (Medical Encyclopedia)


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Romano-Ward syndrome Romano-Ward syndrome is a condition that causes a disruption of the heart's normal rhythm (arrhythmia). This disorder is a form of long QT syndrome, which is a heart condition that causes the heart (cardiac) muscle to take longer than usual to recharge between beats. The term "long QT" refers to a specific pattern of heart activity that is detected with an electrocardiogram (ECG or EKG), which is a test used to measure the electrical activity of the heart. In people with long QT syndrome, the part of the heartbeat known as the QT interval is abnormally long. Abnormalities in the time it takes to recharge the heart lead to abnormal heart rhythms.The arrhythmia associated with Romano-Ward syndrome can lead to fainting (syncope) or cardiac arrest and sudden death. However, some people with Romano-Ward syndrome never experience any health problems associated with the condition.Fifteen types of long QT syndrome have been defined based on their genetic cause. Some types of long QT syndrome involve other cardiac abnormalities or problems with additional body systems. Romano-Ward syndrome encompasses those types that involve only a long QT interval without other abnormalities.
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Jervell and Lange-Nielsen syndrome Jervell and Lange-Nielsen syndrome is a condition that causes profound hearing loss from birth and a disruption of the heart's normal rhythm (arrhythmia). This disorder is a form of long QT syndrome, which is a heart condition that causes the heart (cardiac) muscle to take longer than usual to recharge between beats. Beginning in early childhood, the irregular heartbeats increase the risk of fainting (syncope) and sudden death.
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