Friends Life paid 90% of claims under its critical illness plans last year., 1,565 claims admitted and processed out of 1,733.
The total amount of claims paid was in excess of £89.5million and the largest pay out of £1.1m was for prostate cancer.
Only 6% of claims were declined for not meeting the definition and 4% were turned down due to non disclosure.
Steve Casey, Head of Marketing & Intermediary proposition development at friends Life, commented: "The wide range of conditions that our customers continue to claim for demonstrates that not all critical illness covers are the same.
"It is important that people ensure that they have the right cover in place and that advisers work hard to match their clients to relevant and appropriate policies for their needs."
Claims were received for conditions including Alzheimer's disease, major organ transplantation, insulin dependent diabetes (over age 40) and coma as well as cancer, heart attack, stroke and multiple sclerosis.
The average age of male claimants in 2011 was 45, with the average age for females being 43.
