Washington Revised Code Title 48. Insurance § 48.44.420. Coverage for adopted children

(1) Any health care service contract under this chapter delivered or issued for delivery in this state, which provides coverage for dependent children, as defined in the contract of the subscriber, shall cover adoptive children placed with the subscriber on the same basis as other dependents, as provided in RCW 48.01.180.

(2) If payment of an additional premium is required to provide coverage for a child, the contract may require that notification of placement of a child for adoption and payment of the required premium must be furnished to the health care services contractor. The notification period shall be no less than sixty days from the date of placement.