What pre-existing conditions need to be declared?

Asked by: Prof. Jaylin Mayer  |  Last update: June 28, 2026
Score: 4.5/5 (28 votes)

Pre-existing conditions that must be declared typically include any chronic, ongoing, or recent health issue for which you have received medical advice, diagnosis, care, treatment, or prescribed medication, often within the last 2 to 5 years. Failure to disclose these can invalidate insurance policies.

What counts as pre-existing conditions?

A health problem, like asthma, diabetes, or cancer, you had before the date that new health coverage starts. Insurance companies can't refuse to cover treatment for your pre-existing condition or charge you more.

Do you have to disclose pre-existing conditions?

Yes, insurers can deny coverage if pre-existing conditions are not disclosed during the application process.

What type of insurance can be denied due to pre-existing conditions?

Can I be denied coverage if I have a pre-existing condition? No. Under the ACA, it's against the law for a health insurance company to deny you coverage because of a pre-existing condition.

What are declinable pre-existing conditions?

Declinable Pre-existing Conditions

Insurers maintained lists of health conditions for which applicants would routinely be denied coverage. Declinable conditions included AIDS/HIV, congestive heart failure, diabetes, epilepsy, severe obesity, pregnancy, and severe mental disorders.

New 'Expat Care' Covers Pre-Existing Health Insurance Conditions in Thailand

36 related questions found

What medical conditions prevent you from getting life insurance?

Health issues can lead to life insurance denial. Chronic illnesses such as diabetes, heart disease, and cancer significantly impact insurability and result in higher premiums due to increased risk.

How do insurance companies check for pre-existing conditions?

When you buy a health insurance policy, you need to provide details of any illnesses you have suffered/treatments you have undergone during your lifetime. The insurance company will then refer all your health issues to their medical panel to differentiate between pre-existing and newly contracted illnesses.

How far back do insurance companies look for pre-existing conditions?

Typically, they might seek medical records from the last 5-7 years. That's the general timeline for medical record checks, but insurance companies can go back even further when exploring other facets of your past, such as driving history or previous insurance claims.

What happens if I don't declare pre-existing medical conditions?

This omission can lead to significant consequences, particularly during the claims process. If a claim is made related to a pre-existing condition that was not disclosed, the insurance company may reject the claim.

How do insurance companies prove pre-existing conditions?

Insurance companies often request extensive medical records, hoping to find any prior complaints or treatments related to the area of your body injured in the accident. They may highlight routine medical visits, minor complaints, or even preventive care as evidence of pre-existing problems that reduce their liability.

How long is something considered a pre-existing condition?

The length of time before the start date of coverage during which a condition would be considered pre-existing varies, and can be anywhere from 30 days to 6 months or longer.

What are the most common pre-existing conditions?

What are some examples of pre-existing health conditions? Chronic illnesses and medical conditions, including many forms of cancer, diabetes, lupus, epilepsy, and depression may be considered pre-existing conditions. Pregnancy before enrollment is also considered pre-existing and chronic.

What if I don't disclose a preexisting condition?

Insurance companies will try to reject your claim if you do not disclose any pre-existing conditions. This is because they could argue that your current injuries are from your pre-existing condition and not the accident.

Is anxiety a pre-existing condition?

Insurance companies define pre-existing conditions as health issues that existed before the start date of your health insurance policy. For anxiety specifically, this typically means you've been diagnosed or received treatment for anxiety symptoms before applying for coverage.

How does pet insurance know if something is a pre-existing condition?

Pet insurance companies know about pre-existing conditions primarily by reviewing your pet's medical records, often requested when you apply or with your first claim, and sometimes by requiring a veterinary exam to establish a health baseline, looking for any symptoms or diagnoses before coverage started. They use these records to identify issues like chronic allergies or past injuries that occurred during "look-back periods," typically 6-18 months before enrollment, to determine what won't be covered. 

Is blood pressure a pre-existing condition?

Some of the common examples of PED include all the long-term health issues, such as high blood pressure, diabetes, thyroid, asthma, etc. Pre-existing diseases develop as you age, and thus, are most common among senior citizens.

What is the 80 20 rule in insurance?

The 80/20 rule in insurance refers to two main concepts: the Medical Loss Ratio (MLR) under the Affordable Care Act (ACA), requiring insurers to spend 80% (85% for large groups) of premiums on care or refund the rest, and a common home insurance clause where you must insure your home for at least 80% of its replacement cost to receive full coverage for partial losses, preventing underinsurance. In health insurance, it limits administrative costs and profits, while in homeowners insurance, it ensures adequate dwelling coverage to avoid penalties on claims. 

What are the three most common mistakes on a claim that will cause denials?

Here, we discuss the first five most common medical coding and billing mistakes that cause claim denials so you can avoid them in your business:

  • Claim is not specific enough. ...
  • Claim is missing information. ...
  • Claim not filed on time (aka: Timely Filing)

What are the top five worst insurance companies?

Which Insurance Companies Are Considered The Worst?

  • Allstate. Allstate has provided insurance to Americans since 1931. ...
  • Progressive. Progressive was launched in 1937. ...
  • UnitedHealth. Richard T. ...
  • State Farm. State Farm has been in business since 1922. ...
  • Elevance Health (Formerly Anthem) ...
  • Unum. ...
  • Federal Employee Benefits. ...
  • Farmers.

What states have pre-existing condition protections?

In 2019 and 2020, at least 15 states (CT, DE, FL, HI, IN, LA, MD, ME, NH, NJ, NM, NV, OR, VT, and WA) have enacted laws to create or study coverage protections against pre-existing condition exclusions or coverage of all essential health benefits (EHB) provided for in the Affordable Care Act (ACA).

What is the no pre-existing condition limitation?

The Patient Protection and Affordable Care Act (ACA) prohibits the use of pre-existing conditions—such as heart disease or a cancer diagnosis—to deny, increase premiums, or impose waiting periods for health insurance coverage.