ICD-10 Diagnosis Code I45.10

Unspecified right bundle-branch block

Diagnosis Code I45.10

ICD-10: I45.10
Short Description: Unspecified right bundle-branch block
Long Description: Unspecified right bundle-branch block
This is the 2018 version of the ICD-10-CM diagnosis code I45.10

Valid for Submission
The code I45.10 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

Code Edits
The following edits are applicable to this code:
Questionable admission codes Additional informationCallout TooltipQuestionable admission codes
Some diagnoses are not usually sufficient justification for admission to an acute care hospital. For example, if a patient is given code R030 for elevated blood pressure reading, without diagnosis of hypertension, then the patient would have a questionable admission, since elevated blood pressure reading is not normally sufficient justification for admission to a hospital.

Diagnostic Related Groups
The diagnosis code I45.10 is grouped in the following Diagnostic Related Group(s) (MS-DRG V35.0)


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.

  • Bifascicular block
  • Bifascicular block on electrocardiogram
  • Electrocardiographic complete right bundle branch block
  • Electrocardiographic incomplete right bundle branch block
  • Electrocardiographic right bundle branch block
  • Left anterior fascicular block
  • Left anterior fascicular block on electrocardiogram
  • Monofascicular block
  • Right bundle branch block
  • Right bundle branch block AND left anterior fascicular block
  • Right bundle branch block and left anterior fascicular block on electrocardiogram
  • Right bundle branch block with left bundle branch block
  • Right bundle branch block, anterior fascicular block AND incomplete posterior fascicular block

Index of Diseases and Injuries
References found for the code I45.10 in the Index of Diseases and Injuries:

Information for Patients


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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