Does Pets Best cover chronic conditions diagnosed before policy start?
PetClaim Editorial · 7/7/2026
My beloved dog was recently diagnosed with a chronic condition, and I'm devastated to learn that treatments could be lifelong and expensive. I'm trying to understand if my existing Pets Best policy will help cover these ongoing costs, especially if we didn't know about it before I signed up. What are the specifics regarding chronic condition reimbursement with Pets Best, particularly for conditions that might have been developing but weren't formally diagnosed until after enrollment?
1 answer
★ Verified expert
Navigating pet insurance claims for chronic conditions can certainly feel overwhelming, and it's a very common concern for pet parents. When it comes to Pets Best and chronic conditions, the defining factor for coverage is almost always *when the condition first manifested symptoms or was diagnosed* in relation to your policy's effective date and waiting periods.
Pets Best, like most pet insurance providers, operates on the principle of covering *new* illnesses and injuries that occur after your policy's waiting periods have been fulfilled. This means that if your pet's chronic condition—such as diabetes, arthritis, allergies, or hypothyroidism—showed signs, symptoms, or was diagnosed *before* your Pets Best policy effective date or during its initial waiting periods, it will generally be considered a **pre-existing condition**. Pre-existing conditions are typically excluded from coverage across the vast majority of pet insurance plans, including those offered by Pets Best.
There are nuances, however. Some chronic conditions can have 'curable' versus 'incurable' classifications. Pets Best, for instance, may cover 'curable' pre-existing conditions if your pet has been symptom-free and treatment-free for a certain period (e.g., 180 days, though this can vary and you should always check your specific policy terms). However, for *incurable* chronic conditions like diabetes or severe arthritis, if they were pre-existing, they will likely remain excluded throughout the policy's lifetime.
Typical denial reasons related to chronic conditions often center on:
1. **Pre-existing condition:** The most frequent reason. The insurer reviews veterinary records *prior* to your policy's start date to determine if there's any mention of symptoms, diagnoses, or treatments related to the chronic condition.
2. **Waiting periods:** The condition was diagnosed or showed symptoms during your policy's illness waiting period (e.g., 14 days after enrollment).
3. **Lack of documentation:** Insufficient veterinary records to clearly establish the onset of the condition relative to your policy's effective date.
To understand your specific situation, you'll need to review your Pets Best policy document carefully, paying close attention to the definitions of 'pre-existing condition' and the waiting periods. Your policy's Declaration of Coverage will outline what plan you have and any specific endorsements or exclusions.
If your claim for a chronic condition is denied and you believe it was erroneously classified as pre-existing, your next step is to gather all relevant veterinary medical records, especially those immediately preceding and following your policy's start date. A clear timeline of your pet's health can be crucial. You have the right to appeal the decision. Many pet insurance companies have a formal appeal process, and you can often submit additional veterinary statements or clarified records to support your case. Remember, advocating for your pet can be a detailed process.
For assistance in building a compelling appeal, resources like PetClaim.org offer valuable tools and guidance to help you organize your documentation and present your case effectively to your insurer, increasing your chances of a successful outcome.
PetClaim Expert Team · 7/7/2026 · 0 found helpful