Final answer:
In health maintenance organizations (HMOs), the insurance company decides not to accept the determined allowable charge from an insurance plan as the full fee for care.
Step-by-step explanation:
In a fee-for-service health financing system, medical care providers receive reimbursement according to the cost of services they provide. However, in health maintenance organizations (HMOs), medical care providers receive reimbursement according to the number of patients they handle, rather than the cost of services. In this case, the insurance company decides not to accept the determined allowable charge from the insurance plan as the full fee for care.