1. As used in this section:
"Bodily injury" includes death resulting from bodily injury.
"Insured" as used in subsections A, D, G, and H, means the named insured and, while resident of the same household, the spouse of the named insured, and relatives, wards or foster children of either, while in a motor vehicle or otherwise, and any person who uses the motor vehicle to which the policy applies, with the expressed or implied consent of the named insured, and a guest in the motor vehicle to which the policy applies or the personal representative of any of the above.
"Uninsured motor vehicle" means a motor vehicle for which (i) there is no bodily injury liability insurance and property damage liability insurance in the amounts specified by § 46.2-472, (ii) there is such insurance but the insurer writing the insurance denies coverage for any reason whatsoever, including failure or refusal of the insured to cooperate with the insurer, (iii) there is no bond or deposit of money or securities in lieu of such insurance, (iv) the owner of the motor vehicle has not qualified as a self-insurer under the provisions of § 46.2-368, or (v) the owner or operator of the motor vehicle is immune from liability for negligence under the laws of the Commonwealth or the United States, in which case the provisions of subsection F shall apply and the action shall continue against the insurer. A motor vehicle shall be deemed uninsured if its owner or operator is unknown.
A motor vehicle is "underinsured" when, and to the extent that, the total amount of bodily injury and property damage coverage applicable to the operation or use of the motor vehicle and available for payment for such bodily injury or property damage, including all bonds or deposits of money or securities made pursuant to Article 15 (§ 46.2-435 et seq.) of Chapter 3 of Title 46.2, is less than the total amount of damages sustained up to the total amount of underinsured motorist coverage afforded any person injured as a result of the operation or use of the vehicle.
"Available for payment" means the amount of liability insurance coverage applicable to the claim of the injured person for bodily injury or property damage reduced by the payment of any other claims arising out of the same occurrence.