In property insurance, requires insurance coverage for a specified percentage of the property value to receive full reimbursement of a loss. In health insurance, the percentage of a single claim that is not considered as the deductible paid by the policyholder. For 10% coverage, the insured pays the deductible plus 10% of the billed amounts up to a maximum dollar amount specified in the policy. After reaching the maximum the insurer usually covers 100% of losses.