Wash. Admin. Code § 284-96-015
(2) The definition of experimental or investigational services must include an identification of the authority or authorities which will make a determination of which services will be considered to be experimental or investigational. If the group disability insurer specifies that it, or an affiliated entity, is the authority making the determination, the criteria it will utilize to determine whether a service is experimental or investigational must be set forth in the policy and any certificate of coverage issued thereunder. As an example, and not by way of limitation, the requirement to set forth criteria in the policy and any certificate of coverage issued thereunder may be satisfied by using one or more of the following statements, or other similar statements:
(b) "In determining whether services are experimental or investigational, we will consider whether the services result in greater benefits for a particular illness or disease than other generally available services, and do not pose a significant risk to health or safety of the patient."
The supporting documentation upon which the criteria are established must be made available for inspection upon written request in all instances and may not be withheld as proprietary.
(3) Every group disability insurer that denies a request for benefits or that refuses to approve a request to preauthorize services, whether made in writing or through other claim presentation or preauthorization procedures set out in the policy and any certificate of coverage thereunder, because of an experimental or investigational exclusion or limitation, must do so in writing within twenty working days of receipt of a fully documented request. The group disability insurer may extend the review period beyond twenty days only with the informed written consent of the covered individual. The denial letter must identify by name and job title the individual making the decision and fully disclose:
(4) (a) Every group disability insurer must establish a reasonable procedure under which denials of benefits or refusals to preauthorize services because of an experimental or investigational exclusion or limitation may be appealed. The appeals procedure may be considered reasonable if it provides that:
(b) When the initial decision to deny benefits or to refuse to preauthorize services is upheld upon appeal, the written notice shall set forth:
[Statutory Authority: RCW 48.02.060. WSR 16-14-106 (Matter No. R 2016-11), § 284-96-015, filed 7/6/16, effective 8/6/16. Statutory Authority: RCW 48.02.060, 48.18.120, 48.20.450, 48.20.460, 48.30.010, 48.43.055, 48.44.050, 48.46.100 and 48.46.200. WSR 99-24-075 (Matter No. R 98-17), § 284-96-015, filed 11/29/99, effective 12/30/99. Statutory Authority: RCW 48.02.060 (3)(a) and 48.18.120. WSR 92-21-100 (Order R 92-16), § 284-96-015, filed 10/21/92, effective 11/21/92.]