Wash. Admin. Code § 284-30-395
The commissioner finds that some insurers limit, terminate, or deny coverage for personal injury protection insurance without adequate disclosure to insureds of their bases for such actions. To eliminate unfair acts or practices in accord with RCW 48.30.010, the following are hereby defined as unfair methods of competition and unfair or deceptive acts or practices in the business of insurance specifically applicable to automobile personal injury protection insurance. The following standards apply to an insurer's consultation with health care professionals when reviewing the reasonableness or necessity of treatment of the insured claiming benefits under his or her automobile personal injury protection benefits in an automobile insurance policy, as those terms are defined in RCW 48.22.005 (1), (7), and (8), and as prescribed at RCW 48.22.085 through 48.22.100. This section applies only where the insurer relies on the medical opinion of health care professionals to deny, limit, or terminate medical and hospital benefit claims. When used in this section, the term "medical or health care professional" does not include an insurer's claim representatives, adjusters, or managers or any health care professional in the direct employ of the insurer.
(1) Within a reasonable time after receipt of actual notice of an insured's intent to file a personal injury protection medical and hospital benefits claim, and in every case prior to denying, limiting, or terminating an insured's medical and hospital benefits, an insurer shall provide an insured with a written explanation of the coverage provided by the policy, including a notice that the insurer may deny, limit, or terminate benefits if the insurer determines that the medical and hospital services:
(d) Are not incurred within three years of the automobile accident.
These are the only grounds for denial, limitation, or termination of medical and hospital services permitted pursuant to RCW 48.22.005(7), 48.22.095, or 48.22.100.
The written explanation responsive to an insured's intent to file a personal injury protection medical and hospital benefits claim must also include contact information for the office of the Washington state insurance commissioner's consumer protection services, including the consumer protection division's hotline phone number and the agency's website address, and a statement that the consumer may contact the office of the insurance commissioner for assistance with questions or complaints.
(6) If an automobile liability insurance policy includes an arbitration provision, it shall conform to the following standards:
[Statutory Authority: RCW 48.02.060 and 48.22.105. WSR 12-19-081 (Matter No. R 2012-13), § 284-30-395, filed 9/18/12, effective 4/1/13. Statutory Authority: RCW 48.02.060, 48.22.105 and 48.30.010. WSR 97-13-005 (Matter No. R 96-6), § 284-30-395, filed 6/5/97, effective 7/6/97.]