State-registered domestic partner State-registered domestic partner means an adult who meets the requirements for a valid state- registered domestic partnership and has been issued a certificate of state-registered domestic partnership by the Washington State Secretary of State, or an adult whose legal union (other than a marriage) was validly formed in another jurisdiction and is substantially equivalent to a domestic partnership under Washington law. Subscriber A subscriber is an eligible employee, retiree, former employee or former dependent in Continuation Coverage, retired employee of a former employer group, or survivor who is the primary certificate holder and plan member. Substance use disorder Substance use disorder is an illness characterized by a physiological or psychological dependency on a controlled substance or alcohol. Substance use disorder facility A substance use disorder facility is an institution, or part of an institution, that specifically treats dependency on a controlled substance or alcohol and meets all of these criteria: • Is certified by the Washington State Division of Behavioral Health and Recovery (DBHR), or for facilities outside of the Regence BlueShield service area, is contracted with the local BlueCard® network • Is licensed by the state • Keeps adequate patient records that contain course of treatment, progress, discharge summary, and follow-up programs • Performs services under full-time supervision of a physician or registered nurse • Provides services, for a fee, to persons receiving substance use disorder treatment, including room and board, as well as 24-hour nursing Support network The support network includes certain providers contracted with Regence to supplement the core network and ensure network adequacy. Most of the providers in this network are specialty providers. Therapeutic alternative A therapeutic alternative is a drug that is not chemically identical to a nonpreferred drug but has similar effects when given in therapeutically equivalent doses. Therapeutic equivalent A therapeutic equivalent is a drug that is chemically identical to a nonpreferred drug and is expected to have the same effectiveness and toxicity when given in the same doses. Therapeutic interchange Therapeutic interchange is when a pharmacist, with the endorsing provider’s permission (see page 101), substitutes a nonpreferred prescription drug with a preferred drug that is a therapeutic alternative or equivalent. 2024 UMP Plus–PSHVN (PEBB) Certificate of Coverage 191