Insurers regularly ask about pre-existing illnesses like cancer or hepatitis.

The patients were all "primary" alcoholics whose alcoholism was not complicated by any serious pre-existing psychiatric illness.

Planning before departure, particularly for pre-existing illnesses, will save trouble later.

A little planning before departure, particularly for pre-existing illnesses, will save you a lot of trouble later.

The plan does not cover medical care for pre-existing medical illnesses and/or injuries.

The Yale study was careful to exclude people whose weight changes may have been prompted or caused by a pre-existing illness.

Now 46, he has recently been hospitalized for a pre-existing mental illness, bipolar disorder.

The review covered 12 studies with 16,598 participants who had pre-existing illness.

Those with pre-existing mental illnesses are at a higher risk for developing psychiatric symptoms.

This is a common infection in patients with this type of pre-existing illness.