Can this cat enroll?
Check the maximum age for new enrollment, any minimum age, location and available plan type. An insurer’s age rule is a product rule, not a judgment about the cat’s health.
What would the policy exclude?
Ask how prior symptoms, diagnoses and ongoing treatment affect claims. Acceptance into a plan does not establish that those issues are covered.
For a concrete eligibility example, Pets Best currently advertises no upper age limit for cat enrollment. That does not make its coverage unlimited in scope: the offered policy still has exclusions and payment terms. Other providers can set different entry rules.
If a quotation tool offers only a narrower plan, read what changed. An accident-only offer does not become illness protection because it was issued for an older cat.