Health insurers process more than five billion payment claims annually, federal figures show. About 850 million are denied, according to health-policy nonprofit KFF. Less than 1% of patients appeal. Few people realize how worthwhile those labors can be: Up to three-quarters of claim appeals are granted,

A recent change in the appeal process for denied health insurance claims could save Minnesotans time and money.

A new online resource is available for those who have had mental health coverage denied by their insurance company.

Appeals are often successful. Here’s what patients can do.

A California lawmaker introduced a new bill that would force health insurers to disclose denial rates and explain those denials as anger grows over rising costs and uncovered medical care.

While insurance denials are on the rise, surveys show few Americans appeal them. Various analyses have found that many who escalate complaints to government regulators successfully get denials overturned.