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Medicare Coverage for Outpatient Surgery

What is outpatient surgery?

Outpatient surgery is when you go to the hospital, have surgery, and go home the same day. You do not have to stay in the hospital overnight. It is also called ambulatory or same-day surgery. It may be done in:

  • a hospital
  • a doctor's office or clinic
  • a surgical center.

After same-day surgery, you can usually go home in 2 to 4 hours.

What is Medicare?

Medicare is a federal government program. It provides healthcare coverage for people 65 and older and for people of any age who have certain disabilities.

Medicare is divided into 2 parts: Part A and Part B. Each part covers different services. Both parts pay some of the costs for needed medical services. Rules about what Medicare covers can be confusing. Rules also change from time to time. Your local Social Security office can answer your questions about Medicare.

Does Medicare cover outpatient surgery?

Outpatient surgery is covered under Part B of Medicare. Medicare covers surgery if it is medically necessary. Your healthcare provider must tell you if he or she thinks Medicare will judge the surgery to be medically necessary.

Medicare pays 80% of the approved charges. You must pay the other 20%, after you meet your yearly deductible.

If your healthcare provider accepts Medicare assignment, it means that he or she agrees to accept the amount Medicare agrees to pay as payment in full. If your provider does not accept Medicare assignment and the bill is for more than the amount Medicare pays, you will owe the rest. If you have surgery that is medically necessary and the surgeon does not accept Medicare assignment, he or she must give you a written estimate of the charges.

For more information, call Medicare at 1-800-638-6833.

Written by Carolyn Norrgard, RNC, BA, MEd; Carol Matheis-Kraft, PhD, RNC; and Mercedes Bern-Klug, MSW, MA, for RelayHealth.
Published by RelayHealth.
Last modified: 2007-12-20
Last reviewed: 2007-08-19
This content is reviewed periodically and is subject to change as new health information becomes available. The information is intended to inform and educate and is not a replacement for medical evaluation, advice, diagnosis or treatment by a healthcare professional.
© 2009 RelayHealth and/or its affiliates. All Rights Reserved.
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