Wash. Admin. Code § 182-501-0184
For the purposes of this section, the term "health care services" does not include the diagnosis and treatment for alcohol, substance abuse, and mental health services.
(2) The medicaid agency does not pay for health care services furnished in a foreign country, except for medical services furnished in the province of British Columbia, Canada, under this section. The agency pays for medical services furnished in British Columbia, Canada, to Washington apple health (WAH) clients only when those clients:
(3) For WAH clients identified in subsection (2) of this section, the agency covers emergency and nonemergency medical services provided in British Columbia, Canada, when the services are:
(4) For WAH clients identified in subsection (2) of this section, the agency covers nonemergency medical services in British Columbia, Canada, only when:
(b) The medical services in British Columbia, Canada, are closer or more readily accessible to the client's Washington state residence. As applied to nonemergency medical services, the phrase "closer or more readily accessible to the client's Washington state residence" means:
(7) A British Columbia, Canada, provider who furnished health care services or covered items to a WAH client receives payment from the agency only when:
(b) The participating British Columbia, Canada, provider:
[Statutory Authority: RCW 41.05.021 and 41.05.160. WSR 15-15-053, § 182-501-0184, filed 7/9/15, effective 8/9/15. WSR 11-14-075, recodified as § 182-501-0184, filed 6/30/11, effective 7/1/11. Statutory Authority: RCW 74.08.090, 74.04.057 and 74.09.510. WSR 11-14-054, § 388-501-0184, filed 6/29/11, effective 7/30/11. Statutory Authority: RCW 74.04.050, 74.04.057, 74.08.090, 74.09.500, and 74.09.035. WSR 08-08-064, § 388-501-0184, filed 3/31/08, effective 5/1/08.]