Pet Insurance and Pre-Existing Conditions

Pre-existing conditions are one of the most misunderstood aspects of pet insurance. Understanding how insurers define and handle them can save you significant frustration — and money — when you need to make a claim.

What Counts as a Pre-Existing Condition?

A pre-existing condition is any illness, injury, or symptom that your pet showed signs of before your policy started, or during the waiting period. This includes conditions that have been diagnosed and treated, but also — and this is where many pet owners get caught out — symptoms that were noted in your pet's veterinary records even if a formal diagnosis was never made.

For example, if your vet noted that your dog had a slight limp during a routine check-up before you took out insurance, a subsequent claim for cruciate ligament surgery could be denied as a pre-existing condition. Insurers will request your pet's full veterinary history when you make a claim, so nothing goes unnoticed.

Bilateral Conditions

Many insurers treat bilateral conditions — those that can affect both sides of the body — as linked. If your dog had a cruciate ligament repair on the left knee before your policy started, a subsequent injury to the right knee may also be excluded. This is a common source of claim disputes and is worth checking in the policy wording before you buy.

Can You Get Cover for Pre-Existing Conditions?

Most standard policies exclude pre-existing conditions entirely. However, there are some exceptions and workarounds to be aware of.

A handful of specialist providers in the UK now offer policies that cover pre-existing conditions, typically at a higher premium and with specific limitations. These policies may impose longer waiting periods, higher excesses, or sub-limits for pre-existing conditions.

Some insurers will consider a condition "resolved" if your pet has been symptom-free and treatment-free for a specified period — commonly 24 months, though this varies. If you can demonstrate that the condition has not required any treatment or shown any symptoms for this period, the insurer may agree to cover it. Always get this confirmed in writing before relying on it.

How Insurers Verify Pre-Existing Conditions

When you make a claim, the insurer will contact your vet to request your pet's complete clinical history. They will look for any notes, test results, or treatments that relate to the condition you are claiming for. Some insurers go back to the pet's entire history; others look at a specific period (such as the last 2-5 years).

This is why it is essential to be honest on your application. If you fail to disclose a known condition and the insurer discovers it through your vet records, your claim will be denied and your policy could be voided entirely.

Tips for Pet Owners

Insure your pet as early as possible — ideally as a puppy or kitten — before any conditions develop. If you are switching insurers, be aware that conditions covered by your old policy may be treated as pre-existing by the new one. Keep your pet's veterinary records up to date and ask your vet to be precise in their notes, as vague wording can be interpreted against you.

If your pet does have a pre-existing condition, do not assume insurance is off the table. Get quotes from specialist providers, and always read the policy exclusions carefully before committing.