(1) Coverage of emergency services is governed by RCW 48.43.093. Emergency services, as defined in RCW 48.43.005, include services provided after an enrollee is stabilized and as part of outpatient observation or an inpatient or outpatient stay with respect to the visit during which screening and stabilization services have been furnished. Poststabilization services relate to medical, mental health or substance use disorder treatment necessary in the short term to avoid placing the health of the individual, or with respect to a pregnant person, the health of a person or their unborn child, in serious jeopardy, serious impairment to bodily functions, or serious dysfunction of any bodily organ or part.

(2) A carrier may require notification of stabilization or inpatient admission of an enrollee as provided in RCW 48.43.093. Regardless of such notification, payment and cost-sharing for poststabilization services provided by a nonparticipating facility, provider or behavioral health emergency services provider and dispute resolution related to those services are governed by RCW 48.49.040 and 48.49.160.