Why pet insurance denies claims — and how to win
Insurers use the same 20 reasons over and over. Each one has a different winning argument, evidence list, and escalation path.
The insurer says your submission lacks required records or itemization.
The insurer claims your policy wasn't active when treatment occurred.
The insurer says coverage hadn't started yet or there was a gap in coverage.
A curable pre-existing condition (e.g., UTI, ear infection) was denied because the symptom-free waiting period was not met.
Your pet had an issue on one side (e.g., left knee) before coverage, so the insurer denies the *other* side too.
Dental treatment denied as cosmetic, preventive, or excluded.
The insurer says the condition is hereditary or congenital and excluded from coverage.
Treatment denied as not medically necessary, experimental, or investigational.
Treatment by a provider not covered by your plan.
The treatment falls under a specific listed exclusion in your policy (cosmetic, breeding, cloning, etc.).
Behavioral treatment (anxiety, aggression, training) denied as excluded.
The insurer says your pet showed signs of the condition before your policy started or during the waiting period.
High-cost treatment denied because pre-authorization was required but not requested.
Prescription diet or supplements denied as not covered.
The condition appeared during the waiting period (typically 14 days for illness) after your policy started.
Claim denied because the insurer alleges your application omitted or misstated information.
Specific incidental coverage (boarding fees during hospitalization, lost-pet advertising, death benefit) denied.
Claim filed past the submission window (often 90–365 days).
Treatment denied because it's considered routine, preventive, or wellness care.
You've hit your annual or per-condition payout limit.