What Should I Do If My Pet Insurance Claim is Denied?
If you’re dealing with a denied insurance claim, you probably want to know why. It’s frustrating trying to understand all the ins and outs of pet insurance when you’re trying to take care of your sick pet, so we want to help make it as simple as possible.
Why Was My Pet Insurance Claim Denied?
If your pet insurance claim is denied, the first step is understanding why. Once you know the reason, you’ll have a better understanding of your options.
Missing Medical Records or Claim Details
Insurance companies need complete information before they can evaluate a claim. Missing invoices, incomplete medical records, diagnostic reports, or gaps in your pet's medical history may prevent the claims team from determining whether treatment is covered.
A claim may be placed on hold while the claims team waits for the necessary records. Once the missing information is received, the claim can be reopened for processing.
Waiting Periods
Most pet insurance policies include waiting periods before illnesses, orthopedic conditions, or other types of care become eligible for coverage. Waiting periods are designed to help prevent insurance fraud and keep pet insurance more affordable for everyone. If treatment occurs before the waiting period ends, the claim may be denied even if the condition would otherwise be covered.
Pre-Existing Conditions
A pre-existing condition is one that showed signs or symptoms before your policy became effective or during the waiting period, even if your pet wasn’t diagnosed until later. Insurers review your pet’s medical records for evidence of those earlier clinical signs.
For example, if your cat was vomiting repeatedly before you enrolled but wasn’t diagnosed with inflammatory bowel disease until afterward, the condition may still be considered pre-existing because the symptoms started before coverage began.
Policy Exclusions
Insurance policies typically include a section called “Exclusions” that explains what’s not covered. While the details vary by plan, this is where
Annual Limits, Deductibles, or Reimbursement Rules
Sometimes a claim isn’t denied because the treatment wasn’t covered. Instead, your policy’s cost-sharing features may affect how much you’re reimbursed. Here are a few common terms you may see on your claim explanation:
Annual maximum: The most your pet insurance policy will reimburse for covered claims during a policy year.
Deductible: The amount you pay out of pocket before your pet insurance begins reimbursing eligible claims.
Reimbursement percentage: The percentage of eligible veterinary costs your insurer pays after your deductible has been met.
Late Claim Submission
Many insurers require claims to be submitted within a specific timeframe after treatment. Missing that deadline can result in a denial, even if the underlying condition would otherwise qualify for coverage.

What to Do After a Pet Insurance Claim Denial
If you’re wondering what to do when pet insurance denies a claim, start by taking a few minutes to review the decision.
Review the Denial Explanation
Read the denial letter carefully instead of focusing only on the outcome. Look for key words or phrases like waiting period, pre-existing condition, policy exclusion, or missing documentation. The explanation should tell you why your claim wasn’t approved and point you toward the next steps, if any.
Check Your Policy Terms
If you’re not sure why your claim was denied, your policy documents are the best place to look. Find the section referenced in your denial letter and read the coverage details carefully. This can help you determine whether the denial was based on your policy’s terms.
Contact Your Pet Insurance Provider
If you don't understand the explanation, contact the claims department. Never be afraid to ask for clarification. Representatives can often explain the decision and tell you whether additional documentation may help.
Ask Your Veterinarian for Supporting Records
Veterinary records often provide important context. Your veterinarian may be able to submit complete medical notes, diagnostic results, or a letter explaining when symptoms first appeared and why treatment was medically necessary.
How to Appeal a Denied Pet Insurance Claim
If you’re trying to figure out how to appeal an insurance claim denial, first consider whether you have new information or believe an error was made during the review. If so, here’s how to build your appeal.
Gather Your Claim Documents
Before submitting an appeal, gather any documents that support your claim. Depending on the reason for the denial, this may include:
Itemized veterinary invoices
Medical records or exam notes
Laboratory, diagnostic, or imaging results
Notes or letters from your veterinarian or specialist
Your denial letter and previous claim correspondence
Include a Letter or Notes from Your Veterinarian
A written explanation from your veterinarian can clarify diagnoses, symptom timelines, or why a particular treatment was recommended. This additional context may help the reviewer understand the claim.
Explain Why You Believe the Claim Should Be Reconsidered
Write a clear, factual appeal describing why you believe the claim should be reviewed again. Reference the supporting documentation instead of relying on emotional arguments.
Submit the Appeal Before the Deadline
Most insurers have deadlines for appeals. Submit your appeal as soon as possible and follow all instructions regarding documentation and submission methods.
Keep Copies of All Communications
Maintain copies of emails, uploaded files, letters, claim numbers, and notes from phone calls so you have a complete record if additional follow-up is needed.

Mistakes to Avoid After a Pet Insurance Claim Is Denied
Don’t let your frustration keep you from understanding what happened. Approach the situation calmly and methodically.
If you decide to appeal, don’t wait, as many insurers have deadlines for requesting a review.
Don’t hesitate to contact your pet insurance provider. A quick conversation with a claims representative can often clarify the decision and help you understand your options.
Can a Denied Pet Insurance Claim Be Approved Later?
Yes, a denied pet insurance claim can sometimes be approved after it’s reviewed again. This is most likely when the original denial was based on missing or incomplete information, or when new medical records or clarification from your veterinarian change how the claim is evaluated.
However, an appeal can’t change the terms of your policy. If the treatment occurred during a waiting period or is specifically excluded from coverage, providing additional documentation generally won’t make the expense eligible for reimbursement.
How to Help Prevent Future Pet Insurance Claim Denials
Know your policy
Review your waiting periods, exclusions, deductible, reimbursement percentage, and annual reimbursement limit so you know what to expect before your pet needs care.
Submit claims promptly
Don’t let a covered claim turn into a denied one simply because you missed the submission deadline.
Keep your records
Save copies of invoices, medical records, claim forms, and other documentation in case you need them later.
Make sure your claim is complete
Check that your veterinarian has provided any medical records or other information your insurer needs to process the claim.
Ask about pre-certification
If your pet needs an expensive procedure or treatment, find out whether your insurer offers pre-certification so you can better understand whether it’s likely to be covered before moving forward.
Frequently Asked Questions
A condition may be considered pre-existing if your pet showed signs or symptoms before coverage began, even if they weren’t diagnosed until later. For example, if your dog was limping before you enrolled but was diagnosed with a knee injury afterward, the condition may be considered pre-existing.