In a step toward better insurance coverage for eating disorders, Aetna has agreed to pay $250,000 in reimbursements to up to 100 New Jersey policyholders whose claims were denied and to liberalize its largesse for many future claimants.

The agreement, if approved, would settle a class action suit in federal court in Newark, N.J., brought by insureds seeking the same benefits for anorexia and bulimia that are available in cases of biologically based mental illnesses such as schizophrenia.