Does Medicare Cover Preexisting Conditions? (2024)

If you suffered an injury or illness before becoming eligible for Medicare, you may wonder if it will affect your eligibility or coverage options.

Here’s a look at how Medicare works with preexisting conditions.

What is a preexisting condition?

Preexisting conditions are health problems you had before applying for or enrolling in a new insurance plan. Some can be chronic diseases, such as diabetes, high blood pressure or cancer. Others can be mild conditions, such as seasonal allergies or acne.

Medicare coverage for preexisting conditions

Original Medicare (Part A and Part B) has helped cover preexisting conditions since it began in 1965. And thanks to the Affordable Care Act signed in 2014, there are no additional costs for Original Medicare coverage if you have preexisting conditions.

Let’s see how these conditions are handled by the different parts of Medicare.

Does Original Medicare cover preexisting conditions?

Yes. When you sign up for Original Medicare, any preexisting condition will be covered immediately. However, you’ll still be responsible for all out-of-pocket expenses like deductibles, copayments and coinsurance.

Does Medicare Advantage cover preexisting conditions?

Yes. Medicare Advantage (MA) plans won’t reject your enrollment if you have a preexisting condition. But since MA plans are offered by private insurance companies, coverage levels and costs can vary from company to company.

Do Medicare Supplement insurance plans cover preexisting conditions?

It depends on when you enroll and the Medicare Supplement insurance company you choose.

To get guaranteed Medigap coverage, you need to apply during your Medicare Supplement Open Enrollment Period (OEP). The Medicare Supplement OEP starts on the first day of the first month when you’re age 65 or older and enrolled in Medicare Part B. This is a 1-time window when Medigap companies can’t turn you down or charge you more for a preexisting condition.

If you miss your Medicare Supplement OEP, you miss a chance at guaranteed approval as well. Medigap companies can choose to charge you more, impose a waiting period or deny your application because of a preexisting condition.

There are certain situations where you may be able to buy a Medigap policy outside of your Medicare Supplement OEP. These are called “guaranteed issue rights” or “Medigap protections.” For more information, check out these common guaranteed issue rights situations.

Your conditions can be covered

Original Medicare, provided by the U.S. Government, does help cover preexisting conditions. Medicare Advantage and Medigap plans, which are offered by private companies, have their own rules. To learn about Medigap plans with Humana, check out our Medicare Supplement Insurance plans today.

Frequently asked questions

Not for everyone. In some cases, a Medigap insurance company can refuse to cover out‑of‑pocket costs for preexisting health problems for up to 6 months. This is called a “preexisting condition waiting period.” After 6 months, the Medigap policy will cover the preexisting condition.1

If you’re currently enrolled in a Medicare Advantage plan, you have 2 enrollment periods per year to switch plans:

The Open Enrollment Period

(Oct. 15 – Dec. 7) and

The Medicare Advantage Open Enrollment Period (MA OEP)

(Jan. 1 – March 31).

Yes. If you’ve had your current Medigap policy for under 6 months, you can switch to a different Medigap policy. However, you may have to wait up to 6 months before any new benefits start or your preexisting condition will be covered.2

Explore Medicare

Humana answers your Medicare questions

Does Medicare Cover Preexisting Conditions? (1)

Enrollment and eligibility

How to switch from Original Medicare to Medicare Advantage

Does Medicare Cover Preexisting Conditions? (2)

Enrollment and eligibility

How to register for Medicare in 3 easy steps

Does Medicare Cover Preexisting Conditions? (3)

Medicare coverage

What does Medicare cover (and not cover)?

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Sources

  1. “Choosing a Medigap Policy,”, PDF Medicare.gov, last accessed Jan. 22, 2024.
  2. “Can I change my Medigap policy,” Medicare.gov, last accessed Jan. 22, 2024.
Does Medicare Cover Preexisting Conditions? (2024)

FAQs

Does Medicare Cover Preexisting Conditions? ›

Yes. When you sign up for Original Medicare, any preexisting condition will be covered immediately. However, you'll still be responsible for all out-of-pocket expenses like deductibles, copayments and coinsurance.

What pre-existing conditions are not covered? ›

Health insurers can no longer charge more or deny coverage to you or your child because of a pre-existing health condition like asthma, diabetes, or cancer, as well as pregnancy. They cannot limit benefits for that condition either.

Can I be denied coverage for a preexisting condition? ›

Under the Affordable Care Act, health insurance companies can't refuse to cover you or charge you more just because you have a “pre-existing condition” — that is, a health problem you had before the date that new health coverage starts.

Is there a waiting period for pre-existing conditions medicare supplement? ›

In some cases, the Medigap insurance company can refuse to cover your out of pocket costs for these pre‑existing health problems for up to 6 months. This is called a “pre‑existing condition waiting period.” After 6 months, the Medigap policy will cover the pre‑existing condition.

What is the 6 month rule for Medicare? ›

You can sign up for Part A any time after you turn 65. Your Part A coverage starts 6 months back from when you sign up or when you apply for benefits from Social Security (or the Railroad Retirement Board). Coverage can't start earlier than the month you turned 65.

Do pre-existing conditions apply to Medicare? ›

Yes. When you sign up for Original Medicare, any preexisting condition will be covered immediately. However, you'll still be responsible for all out-of-pocket expenses like deductibles, copayments and coinsurance.

How do you avoid pre-existing condition exclusion? ›

If your health plan is fully compliant with the ACA and obtained in either the individual/family market or the employer-sponsored market, you no longer need to worry about pre-existing condition exclusion periods.

Can UnitedHealthcare deny coverage for preexisting conditions? ›

You cannot be denied coverage based on preexisting conditions. No. You must answer a series of medical questions to apply for coverage. Short Term Medical plans are medically underwritten.

What counts as pre-existing medical conditions? ›

A pre-existing medical condition (PEMC) is an illness or injury you had before your policy began or was renewed. Examples of pre-existing medical conditions include, diabetes, asthma, high cholesterol or a long-term back condition.

How long can an insurer exclude coverage for a pre-existing condition? ›

The time period during which a health plan won't pay for care relating to a pre-existing condition. Under a job-based plan, this cannot exceed 12 months for a regular enrollee or 18 months for a late-enrollee.

Can Medicare Supplement plans deny for pre-existing conditions? ›

You can buy any Medigap policy sold in your state. An insurance company can't use medical underwriting to decide whether to accept your application - they can't deny you coverage due to pre-existing health problems.

What is no longer covered by Medicare? ›

Generally, most vision, dental and hearing services are not covered by Medicare Parts A and B. Other services not covered by Medicare Parts A and B include: Routine foot care. Cosmetic surgery.

Can Medicare refuse to insure you? ›

Medicare won't reject your enrollment if you have health problems. Note that this doesn't mean Medicare covers all treatment of every health condition.

Does everyone have to pay $170 a month for Medicare? ›

If you don't get premium-free Part A, you pay up to $505 each month. If you don't buy Part A when you're first eligible for Medicare (usually when you turn 65), you might pay a penalty. Most people pay the standard Part B monthly premium amount ($174.70 in 2024).

What is the 2 2 2 rule in Medicare? ›

Background. Originally published in 2013 and amended in 2016, the two-midnight rule provides that inpatient services are generally payable under Medicare Part A if a physician expects a patient to require medically necessary inpatient hospital care that spans at least two midnights.

What is the 3 year new patient rule for Medicare? ›

Three-year rule: The general rule to determine if a patient is new” is that a previous, face-to-face service (if any) must have occurred at least three years from the date of service. Some payers may have different guidelines, such as using the month of their previous visit, instead of the day.

How do insurance companies determine pre-existing conditions? ›

How are pre-existing conditions determined? A pre-existing condition is typically when you have received treatment or diagnosis before you enrolled in a new health plan.

What if pre-existing conditions are not declared? ›

Failure to disclose pre-existing conditions not only jeopardizes the chances of successful claims but may also lead to the cancellation of the policy in extreme cases.

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