Sourced from public Reddit posts and BBB consumer complaint records — every case links to its original source. Self-reported accounts, not adjudicated rulings. No composites, no invented numbers.
DeniedReddit2026-10 · r/petinsurancereviews
Dog (9-mo Lab) · First-ever claim denied via “allergy” grouping
Trupanion
First claim denied; vet appeal shut down within a day
Otitis externa was noted during the 30-day waiting window and the vet called it a one-off. 4–5 months later a skin-bump visit — the owner’s first ever claim — was denied because Trupanion grouped the two conditions together as “allergies,” making any related future claim pre-existing and never covered. The vet’s written appeal was rejected within a day and supervisors would not revisit.
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DeniedReddit2026-10 · r/sanfrancisco
Dog · Acute pneumonia hospitalization
Trupanion
Preauth denied
Preauthorization was denied as pre-existing; the vet spent about half an hour on the phone arguing that acute pneumonia is not pre-existing. The denial stood and the owner is appealing.
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PaidReddit2026-09 · r/petinsurancereviews
Dog · Lifetime of major claims
Trupanion
90% of ~$45,000
"No questions asked" across a lifetime of claims, per a comment on the private-equity-in-pet-insurance thread.
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PaidReddit2026-09 · r/DogAdvice
2 dogs over a decade · Multiple emergencies incl. 2 life-savers
Trupanion
$110,000+ total
"They've paid out over $110k on my two dogs over the last decade."
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Premium shockReddit2026-09 · r/britishshorthair
Kitten (British Shorthair 14mo) · Echocardiogram + annual price jump
Trupanion
$67 → $89/mo
An echocardiogram was ultimately covered after a painful back-and-forth, but the premium rose from $67 to $89 a month on a 14-month-old kitten; a $36/mo competitor quote frames the owner's dilemma.
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DeniedReddit2026-08 · r/petinsurancereviews
Dog · Emergency surgery
Trupanion
$4,500
Switched carriers mid-life; old records showed brief vomiting episodes. "The next insurance will have a lot more to deny" — the switcher's trap.
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DeniedReddit2026-07 · r/Pets
Dog (Shorkie 1.5yo) · Allergy shot + bloody diarrhea
Trupanion
—
Two claims denied as pre-existing: an allergy shot because itching was mentioned at a vaccine visit, then bloody diarrhea because past constipation allegedly made all GI issues pre-existing.
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DeniedReddit2026-07 · r/petinsurancereviews
Cat · ER hospitalization (5 days) + follow-up
Trupanion
$700 paid; $10,000 unpaid
First claim paid within days ($700 direct to clinic); the ~$10,000 ER hospitalization claim then sat three weeks in 'specialist review' with no timeline. Owner is a vet tech with the full medical team ready to appeal. Claim unresolved as of posting.
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PaidReddit2026-05 · r/petinsurancereviews
2 small breeds · Behavior modification program
Trupanion (Chewy plan)
$4,800–$9,600
The Chewy-administered Trupanion plan covered licensed dog-trainer behavior claims — rare in the industry. Annual deductible variant; not available in California.
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PaidReddit2026-03 · r/petinsurancereviews
Dog (9mo puppy) · Total hip replacement (severe hip dysplasia)
Trupanion
90% — direct pay to surgery center
Diagnosed at 9 months after early enrollment. Trupanion paid the surgery center directly; owner only covered the 10% portion.
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PaidReddit2026-03 · r/petinsurancereviews
Dog (Pittie) · 5× TPLO knee surgeries
Trupanion
All five covered
Second knee was initially argued as pre-existing; paid after appeal. Poster: "I think they're going to blacklist us."
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Premium shockBBB2026-03 · BBB complaint
Dog · Premium increase + unanswered document requests
Trupanion
$188.75 → $268.91/mo
Repeated requests for a cost summary went unanswered; then a +$80/mo increase notice arrived. The insurer's response on the complaint record confirms the 2026 adjustment.
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Partial / fine printBBB2026-03 · BBB complaint
Dog · Per-condition lifetime deductible disputes
Trupanion
—
The owner reports appealing the "lifetime per-condition deductible" on every claim for two years — plus a rider that couldn't be re-added without restarting the policy.
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Partial / fine printBBB2026-03 · BBB complaint
Cat · Exclusion report (Medical Record Summary) never delivered
Trupanion
$4,000 premiums; $2,000 refund sought
The exclusion summary promised within 30 days of enrollment never arrived (per the owner's email trail) — so exclusions only surfaced when claims were filed. A legal inquiry is involved.
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Premium shockReddit2026-02 · r/petinsurancereviews
Dog (corgi, 8yo, insured since 2018) · No claims change
Trupanion
$195 → $260/mo
January renewal took the premium from $195 to $260/mo with no change in coverage — 33% in one year. The owner feels priced in at the dog's age; commenters note Trupanion's rate increases vary sharply by region.
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DeniedReddit2025-12 · r/petinsurancereviews
Cat · New stomach illness
Trupanion
—
Denied because the cat vomited "a few times in 2022" — years before. Commenters note appeals route through AI review and recommend a vet letter.
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Partial / fine printReddit2025-12 · r/cavaliers
Dog (cavalier, 1yo+) · Spay surgery
Trupanion
+~$30/mo at renewal
The owner's only Trupanion claim — a spay — was denied as "cosmetic and elective." A Trupanion customer in the comments confirms spay/neuter is not covered; the same month brought a ~$30/mo renewal increase.
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PaidReddit2025-08 · r/petinsurancereviews
Dog · ER hospitalization
Trupanion
$1,890
First denied for "missing records" (ER staff couldn't process direct pay at 4am). After sending full vet history, Trupanion reimbursed $1,187 + $147.
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PaidReddit2025-05 · r/petinsurancereviews
Dog (mutt) · Luxating patella + TPLO surgery
Trupanion
$6,000 → $4,800 back
Pre-approval within 48 hours; after the surgery, the ~$4,800 payout arrived within 72 hours of filing. Earlier claims for an intermittent limp were also approved without issue.
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DeniedReddit2025-03 · r/Pets
Golden Retriever · Vaccine-reaction pre-treatment
Trupanion
—
Benadryl pre-treatment after a near-fatal puppy vaccine reaction denied as "preventative care" — not covered at all under accident/illness plans.
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DeniedReddit2024-08 · r/puppy101
Dog (2yo) · ACL surgery
Trupanion
$7,000
Denied as "degenerative joint disease" in a 2-year-old whose parents are breed-cleared. Multiple commenters report Trupanion now uses AI-assisted claim processing and urge a formal appeal with vet paperwork.
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PaidReddit2024-05 · r/povertyfinance
Cat · Flea-med poisoning → seizures → CHF
Trupanion
90% of ER bill
Given the dog's flea medication by accident; hospitalization triggered a heart defect discovery, cardiologist and echo — all 90% covered on a $34/mo policy.
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Premium shockReddit2024-04 · r/goldenretrievers
Golden Retriever · Aging repricing
Trupanion
$60 → $160/mo
Puppy-era $60 became $160 by age 7 with few claims; "they tell you it's breed and age and you can't do anything".
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DeniedReddit2023-06 · r/DOG
Dog · Emergency back surgery
Trupanion
—
Undiagnosed mid-back pain documented (without scans) before enrollment. Company refused to cover the urgent surgery; family faced rehoming the dog.
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PaidReddit2023-04 · r/dogs
Dog (Frenchie) · IVDD neck surgery
Trupanion
$8,000 bill → $1,700 OOP
Neurologist-performed IVDD surgery; $1,000 deductible + 10% coinsurance. Same thread: Nationwide paid ~100% of a tumor removal.
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DeniedReddit2022-12 · r/dogs
Toy Manchester Terrier · Front leg injury (congenital dispute)
Trupanion
—
Breeder's vet note about a sprained leg 3 days before adoption became the pre-existing anchor. Community split on congenital vs pre-existing interpretation.
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DeniedReddit2022-07 · r/puppy101
Puppy · X-rays for suspected foreign body (none found)
Trupanion
$2,000+
Over $2,000 in X-ray bills denied because no blockage was found — the insurer stipulated the workup must have related to the Giardia he had at the time, a pre-existing condition. Commenters: nobody X-rays for Giardia.
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DeniedReddit2022-05 · r/saskatoon
Cat · Respiratory distress (university vet hospital)
Trupanion (Canada)
$3,500
Anything respiratory "will not be covered ever" because of a tentative, unconfirmed asthma diagnosis noted before enrollment. The cat's own vet says his inflamed lungs don't look like asthma. Canadian case; complaint route runs through Saskatchewan's regulator.
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DeniedReddit2022-01 · r/dogs
Dog · Seizure workup
Trupanion
~$2,500 premiums in
Owner skipped a $5k MRI on the vet's "watch and wait" advice. When seizures came, Trupanion deemed the new episodes unrelated to the earlier undiagnosed symptoms.
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DeniedReddit2020-05 · r/Pets
Pug · Stenotic nares surgery
Trupanion
—
The 8-week puppy checkup (pre-enrollment) noted the breed's risk of stenotic nares. That single sentence made the later surgery pre-existing.
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Partial / fine printReddit2012-11 · r/dogs
Dog · One $950 ER bill, 3 minor issues
Trupanion
$0 back
Trupanion's PER-CONDITION deductible split one visit into 5 separate claims — each under a $500 deductible. The most-misunderstood policy mechanic in pet insurance.
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PaidReddit2012-09 · r/dogs
Great Dane · Meningitis at 8 months
Trupanion
$10,000+
90% of diagnostics, medications and surgery covered.
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