Bad backs are behind the Bay of Plenty's most common health insurance claims, new figures reveal.
The cost of spinal surgery health insurance claims paid out by Southern Cross Health Society last year in the Bay reached $93,000 - the largest amount of money paid for a singular ailment.
There was $55,000 paid for cardiac surgery, the second-highest claim, and $46,000 for colon surgery, the third highest.
Southern Cross chief executive Peter Tynan said the costs demonstrated what a valuable safety net health insurance could be.
"No one wants to be ill but, if the unexpected happens and you need timely access to treatment, it can be very comforting to have the financial aspect taken care of," he said.