Does Medicare Cover Implantable Cardioverter-Defibrillators (ICD)?

An implantable cardioverter-defibrillator (ICD) is a device placed in your chest to monitor an arrhythmia, or irregular heartbeat. It delivers shocks as needed to keep your heart beating properly. Medicare Part A or Part B will cover an ICD depending on whether you receive the surgery to implant the device as an inpatient or outpatient.

Christian Simmons, writer and researcher for RetireGuide
  • Written by
    Christian Simmons

    Christian Simmons

    Financial Writer

    Christian Simmons is a writer for RetireGuide and a member of the Association for Financial Counseling & Planning Education (AFCPE®). He covers Medicare and important retirement topics. Christian is a former winner of a Florida Society of News Editors journalism contest and has written professionally since 2016.

    Read More
  • Edited By
    Lee Williams
    Lee Williams, senior editor for

    Lee Williams

    Senior Financial Editor

    Lee Williams is a professional writer, editor and content strategist with 10 years of professional experience working for global and nationally recognized brands. He has contributed to Forbes, The Huffington Post, SUCCESS Magazine,, Electric Literature and The Wall Street Journal. His career also includes ghostwriting for Fortune 500 CEOs and published authors.

    Read More
  • Published: May 26, 2021
  • Updated: January 17, 2023
  • 3 min read time
  • This page features 12 Cited Research Articles
Fact Checked
Fact Checked

Our fact-checking process starts with vetting all sources to ensure they are authoritative and relevant. Then we verify the facts with original reports published by those sources, or we confirm the facts with qualified experts. For full transparency, we clearly identify our sources in a list at the bottom of each page.

Cite Us
How to Cite's Article

APA Simmons, C. (2023, January 17). Does Medicare Cover Implantable Cardioverter-Defibrillators (ICD)? Retrieved October 4, 2023, from

MLA Simmons, Christian. "Does Medicare Cover Implantable Cardioverter-Defibrillators (ICD)?", 17 Jan 2023,

Chicago Simmons, Christian. "Does Medicare Cover Implantable Cardioverter-Defibrillators (ICD)?" Last modified January 17, 2023.

Why Trust
Why You Can Trust Us

Content created by RetireGuide and sponsored by our partners.

Key Principles

RetireGuide’s mission is to provide seniors with resources that will help them reach important financial decisions that affect their retirement. Our goal is to arm our readers with knowledge that will lead to a healthy and financially sound retirement.

We’re dedicated to providing thoroughly researched Medicare information that guides you toward making the best possible health decisions for you and your family.

RetireGuide LLC has partnerships with Senior Market Sales (SMS) and GoHealth.

Our partners are able to be reached through the phone numbers and/or forms provided on our website.

The content and tools created by RetireGuide adhere to strict Medicare and editorial guidelines to ensure quality and transparency.

Editorial Independence

While the experts from our partners are available to help you navigate various Medicare plans, RetireGuide retains complete editorial control over the information it publishes.

We operate independently from our partners, which allows the award-winning RetireGuide team to provide you with unbiased information.

Visitors can trust our inflexibility regarding our editorial autonomy. We do not allow our partnership to influence RetireGuide’s editorial content whatsoever.

What Is an Implantable Cardioverter-Defibrillator?

An implantable cardioverter-defibrillator (ICD) is a small electronic device that connects to the heart to manage and regulate your heartbeat. Your doctor will surgically implant the device into your chest during a minor procedure. The device will send shocks if it detects that you are developing a dangerous irregular heart rate in order to get your rhythm back on track.

According to Harvard Medical School, more than 100,000 Americans get an ICD each year. There are a number of different conditions that might make an ICD advisable.

Who Needs an ICD
  • You have an abnormal and life-threatening heart rhythm.
  • You have had cardiac arrest from ventricular fibrillation.
  • You have experienced fainting tied to ventricular tachycardia or ventricular fibrillation.
  • You have experienced unexplained fainting.

According to the U.S. National Library of Medicine, most newer ICDs also double as pacemakers, meaning that they can control your heart through electrical pulses to keep it from beating too fast or too slowly, as well as deliver shocks to correct dangerous rhythms.

When Will Medicare Cover an ICD?

Medicare could help cover an ICD and the surgery for it if you have heart failure. It could also potentially be covered if you meet certain other conditions that would make an ICD medically necessary.

Medicare Coverage Criteria for an ICD
  • You have experienced cardiac arrest from ventricular fibrillation.
  • You have had a heart attack.
  • You have severe ischemic dilated cardiomyopathy but not ventricular fibrillation.
  • You have severe non-ischemic dilated cardiomyopathy with no history of cardiac arrest or ventricular fibrillation.
  • You have a familial or genetic disorder and high risk of life-threatening tachyarrhythmias.
Source: U.S. Centers for Medicare & Medicaid Services

If you have had a heart attack or cardiac arrest from ventricular fibrillation and would like Medicare to cover your ICD, you may be required to meet with your health care provider first to discuss the decision to implant an ICD.

Which Medicare Plans Cover Implantable Defibrillators

ICD surgeries are often an outpatient procedure. If you are an outpatient, Medicare Part B will cover 80% of the cost. This leaves you with 20% of the cost after the deductible is met if Medicare is paying for the device. You will also have to pay a copayment to the hospital.

But according to the U.S. National Library of Medicine, about 30% of ICD implantations occur during acute hospitalizations. If you receive the surgery as an inpatient, then Medicare Part A will cover it. You will be responsible for 20% of the cost after you’ve paid the Part A deductible, which is $1,600 in 2023.

A Medicare Advantage plan, or Part C, includes benefits for everything that Original Medicare covers, meaning that an ICD would be covered. Advantage plans vary, but your specific plan could offer additional support for this procedure.

In addition, a Medicare supplement insurance, or Medigap, plan could help with the deductible and coinsurance for an ICD surgery.

Last Modified: January 17, 2023

12 Cited Research Articles

  1. U.S. Centers for Medicare & Medicaid Services. (2022, September 27). 2023 Medicare Parts A & B Premiums and Deductibles 2023 Medicare Part D Income-Related Monthly Adjustment Amounts. Retrieved from
  2. U.S. Centers for Medicare & Medicaid Services. (2022). Costs. Retrieved from
  3. U.S. National Library of Medicine. (2021, March 30). Pacemakers and Implantable Defibrillators. Retrieved from
  4. U.S. Centers for Medicare & Medicaid Services. (2021, March 23). CMS Manual System: Pub 100-04 Medicare Claims Processing, Transmittal 10635. Retrieved from
  5. University of Michigan. (2020, August 31). Heart Rhythm Problems: Should I Get an Implantable Cardioverter-Defibrillator (ICD)? Retrieved from
  6. Harvard Medical School. (2020, June 17). Who Needs an Implantable Cardioverter-Defibrillator? Retrieved from
  7. U.S. Centers for Medicare & Medicaid Services. (2018, February 15). National Coverage Determination (NCD) for Implantable Automatic Defibrillators. Retrieved from
  8. National Center for Biotechnology Information. (2017, August 26). Reasons for and Predictors of Acute Hospitalization Versus Elective Outpatient Implantable Cardioverter-Defibrillator Implantation and Subsequent Differential Clinical Outcomes. Retrieved from
  9. Friedman, D.J. et al. (2016, November). Trends and In-Hospital Outcomes Associated With Adoption of the Subcutaneous Implantable Cardioverter Defibrillator in the United States. Retrieved from
  10. University of Rochester Medical Center. (n.d.) Overview of Pacemakers and Implantable Cardioverter Defibrillators (ICDs). Retrieved from
  11. U.S. Centers for Medicare & Medicaid Services. (n.d.) Defibrillators. Retrieved from
  12. U.S. Centers for Medicare & Medicaid Services. (n.d.) Medicare Costs at a Glance. Retrieved from