Washington Revised Code Title 48. Insurance § 48.44.465. Prescriptions--Preapproval of individual claims--Subsequent rejection prohibited--Written record required

Health care service contractors who through an authorized representative have first approved, by any means, an individual prescription claim as eligible may not reject that claim at some later date. Pharmacists or drug dispensing outlets who obtain preapproval of claims shall keep a written record of the preapproval that consists of identification by name and telephone number of the person who approved the claim.