Or turn it around and make it equally burdensome to both insurer and patient. If you acquire a malady while insured by a particular company, all medical expens

Or turn it around and make it equally burdensome to both insurer and patient. If you acquire a malady while insured by a particular company, all medical expenses that are tied to that diagnosis must be forevermore paid by that insurer, even after the policy lapses, is cancelled, or the patient switches insurers. If that sounds unfair to an insurer, that's great--now they know how we feel about it. Insurers want to deny pre-existing conditions because they don't want to add already-sick people to their risk pool. They wouldn't have to, if the previous insurer was still on the hook for that diagnosis. But they'd never agree to that, because it exposes them to some of the same insolvency risk due to medical bankruptcy that some patients have to face.