2022 ICD-10-CM Code I45

Other conduction disorders

Version 2021

Not Valid for Submission

Short Description:Other conduction disorders
Long Description:Other conduction disorders

Code Classification

  • Diseases of the circulatory system (I00–I99)
    • Other forms of heart disease (I30-I5A)
      • Other conduction disorders (I45)

I45 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of other conduction disorders. The code is not specific and is NOT valid for the year 2022 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.

Specific Coding for Other conduction disorders

Non-specific codes like I45 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for other conduction disorders:

  • BILLABLE CODE - Use I45.0 for Right fascicular block
  • NON-BILLABLE CODE - I45.1 for Other and unspecified right bundle-branch block
  • BILLABLE CODE - Use I45.10 for Unspecified right bundle-branch block
  • BILLABLE CODE - Use I45.19 for Other right bundle-branch block
  • BILLABLE CODE - Use I45.2 for Bifascicular block
  • BILLABLE CODE - Use I45.3 for Trifascicular block
  • BILLABLE CODE - Use I45.4 for Nonspecific intraventricular block
  • BILLABLE CODE - Use I45.5 for Other specified heart block
  • BILLABLE CODE - Use I45.6 for Pre-excitation syndrome
  • NON-BILLABLE CODE - I45.8 for Other specified conduction disorders
  • BILLABLE CODE - Use I45.81 for Long QT syndrome
  • BILLABLE CODE - Use I45.89 for Other specified conduction disorders
  • BILLABLE CODE - Use I45.9 for Conduction disorder, unspecified

Information for Patients


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

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

[Learn More in MedlinePlus]

Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)