(1) The contract shall include the following provision: "Time of Payment of Claims: After receiving written proof of loss, the insurer will pay monthly all benefits then due for (type of benefit) . Benefits for any other loss covered by this policy will be paid as soon as the insurer receives proper written proof." (2) As used in this section, the term "claim" for a noninstitutional provider means a paper or electronic billing instrument submitted to the insurer's designated location that consists