Washington Revised Code Title 70. Public Health and Safety § 70.01.030. Health care fees and charges--Estimate

(1) Health care providers licensed under Title 18 RCW and health care facilities licensed under Title 70 RCW shall provide the following to a patient upon request:

(2) Providers and facilities listed in subsection (1) of this section may, after disclosing estimated charges and fees to a patient, refer the patient to the patient's insurer, if applicable, for specific information on the insurer's charges and fees, any cost-sharing responsibilities required of the patient, and the network status of ancillary providers who may or may not share the same network status as the provider or facility.

(3) Except for hospitals licensed under chapter 70.41 RCW, providers and facilities listed in subsection (1) of this section shall post a sign in patient registration areas containing at least the following language: “Information about the estimated charges of your health services is available upon request. Please do not hesitate to ask for information.”