What Counts as Pre-Existing for a Bullmastiff in Oregon

A pre-existing condition is any illness or injury that was diagnosed, treated, or showed clinical signs before the policy start date. For a Bullmastiff, this means: if a vet documents symptoms of hip dysplasia — even mild or early-stage — before your enrollment date, that condition is pre-existing and permanently excluded. It does not matter whether the condition was formally diagnosed or treated; clinical notes mentioning symptoms are sufficient for the insurer to flag it. Genetic predisposition alone is not pre-existing — being a Bullmastiff with a 25% lifetime rate of hip dysplasia is not a pre-existing condition.

Yes — you can still enroll a Bullmastiff with pre-existing conditions. The policy will cover all other accidents and illnesses; only the specific pre-existing condition is excluded. For a Bullmastiff with 4 documented hereditary risks, a single pre-existing exclusion still leaves significant coverage value for the remaining conditions. A comprehensive policy in Oregon at $65–120/month covers everything diagnosed after enrollment, even if one or two conditions are excluded as pre-existing.

Some insurers distinguish between curable and incurable pre-existing conditions. A curable pre-existing condition (ear infections, urinary tract infections, certain skin conditions) may be covered again after a symptom-free period — typically 12 to 18 months with no treatment, medication, or symptoms. An incurable pre-existing condition (chronic kidney disease, diabetes, hip dysplasia) is permanently excluded with no path back to coverage. For a Bullmastiff, many breed-specific conditions fall into the incurable category, which is why enrolling before any symptoms appear is essential.

No. A breed predisposition is a statistical likelihood, not a clinical finding. A Bullmastiff's 25% lifetime rate of hip dysplasia does not make hip dysplasia pre-existing at enrollment — it becomes pre-existing only if a vet has documented symptoms or a diagnosis before the policy start date. Insurers cannot exclude a condition solely because the breed is predisposed to it (though some budget policies exclude hereditary conditions entirely, which is a different exclusion type). Choose a comprehensive policy that covers hereditary conditions and enroll before symptoms appear.

If a condition is first documented during the waiting period (typically 14 days for illness, 24–48 hours for accidents, up to 6 months for orthopedic conditions), it may be classified as pre-existing and excluded from coverage. The waiting period is designed to prevent enrolling after symptoms have already started. For a Bullmastiff, avoid scheduling vet visits during the illness waiting period unless it is an emergency. Any clinical findings noted during this window can be used to deny future claims for that condition.

For curable conditions, some insurers will reconsider coverage after a 12–18 month symptom-free period. You must provide vet records showing no treatment, medication, or recurrence during that period. For incurable or chronic conditions, the exclusion is permanent — there is no mechanism to restore coverage for a condition documented before enrollment. For a Bullmastiff, conditions like hip dysplasia are typically classified as chronic or incurable once diagnosed, making the pre-enrollment window the only opportunity to secure coverage for these breed-specific risks.

Three strategies: (1) Enroll as early as possible — a Bullmastiff enrolled as a puppy or kitten with no vet history has zero pre-existing exclusions and full coverage for all 4 breed conditions. (2) Enroll before any vet visit, so there are no documented findings in the medical record at the time of enrollment. (3) If your Bullmastiff already has documented conditions, compare insurers on their curable pre-existing condition policies — some offer a path back to coverage after a symptom-free period. A comprehensive policy at $65–120/month still provides significant value even with one or two pre-existing exclusions.