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Why did Nationwide deny my pet's prescription food claim and what can I do?

PetClaim Editorial · 7/10/2026
My veterinarian prescribed a special therapeutic diet for my dog's kidney condition, and I submitted the claim to Nationwide Pet Insurance. I was really surprised and frustrated when they denied it. What are the common reasons Nationwide denies claims for prescription food, and what steps can I take to appeal this decision or ensure future claims are approved?

1 answer

★ Verified expert
It's certainly disheartening when a necessary prescription food claim is denied, especially when it's crucial for your pet's health. Nationwide Pet Insurance, like many other providers, has specific policies regarding prescription food coverage, and understanding these can help clarify why your claim was denied. One of the most frequent reasons for denial is that the condition requiring the prescription food is considered a **pre-existing condition**. Nationwide, similar to other insurers, typically excludes conditions that manifested before the policy's effective date or during the waiting period. If your dog's kidney condition was diagnosed or showed symptoms before you enrolled in Nationwide or during the initial waiting period, the therapeutic diet prescribed to manage it would likely be excluded from coverage. Another common reason is that the food itself might not meet Nationwide's **definition of a covered expense**. Some policies only cover prescription diets if they are considered the *primary* treatment for a covered illness or injury and are purchased from a licensed veterinarian as part of a veterinary visit. If the food was purchased online, from a retail store without veterinary oversight, or is deemed a general maintenance diet rather than a specific therapeutic intervention for a covered illness, it could be denied. Always check if your policy has a specific rider or endorsement for prescription food, as some plans require this additional coverage. Furthermore, **insufficient documentation** can lead to denials. When submitting a claim for prescription food, you must provide a veterinary invoice clearly stating the food's name, the quantity, the cost, and most importantly, the medical necessity. The veterinary record should explicitly link the prescription diet to a covered diagnosis or symptom. If your veterinarian's notes don't clearly state *why* this specific food is medically necessary for a covered condition, Nationwide might deem the claim unsubstantiated. Finally, the **specific policy plan** you have with Nationwide can significantly impact coverage. Some plans offer more comprehensive coverage than others, and a basic accident-only or lower-tier illness plan may not include prescription food benefits at all. It's crucial to review your policy documents thoroughly to understand the extent of your coverage for therapeutic diets. **Next Steps You Can Take:** 1. **Review the Denial Letter Carefully:** Nationwide is required to provide a reason for denial. This letter is your most important clue. It will explicitly state the exclusion or policy clause they are citing. 2. **Contact Nationwide Customer Service:** Call them directly to discuss the denial. Ask for a more detailed explanation and clarify any ambiguities. Document the call, including date, time, and the representative's name. 3. **Gather Additional Veterinary Records:** If the denial was due to insufficient documentation, work with your vet to provide clearer notes. This might include a letter of medical necessity from your veterinarian explicitly stating how the prescription food is vital for your dog's covered condition and how long it's expected to be needed. 4. **Understand Your Policy Wording:** Get a copy of your full policy document if you don't have one and meticulously review the sections on exclusions, pre-existing conditions, and prescription food coverage. Highlight relevant clauses relating to your denial. 5. **Prepare an Appeal:** If you believe the denial was an error or you have new information to provide, you have the right to appeal. Submit a formal written appeal outlining why you believe the claim should be paid, referencing your policy, and including all supporting documentation. Petclaim's appeal builder can guide you through creating a compelling and well-structured appeal, ensuring you include all necessary information and arguments. By following these steps, you significantly increase your chances of successfully overturning a denied prescription food claim and ensuring your pet gets the care they need.
PetClaim Expert Team · 7/10/2026 · 0 found helpful