Wash. Rev. Code § 48.43.071
Upon request of a covered person or a covered person's personal representative, an issuer shall provide the covered person or representative with one copy of the covered person's health care information free of charge if the covered person is appealing the denial of federal supplemental security income or social security disability benefits. The issuer may provide the health care information in either paper or electronic format. An issuer is not required to provide a covered person or a covered person's personal representative with a free copy of health care information that has previously been provided free of charge pursuant to a request within the preceding two years. For purposes of this section, "health care information" has the same meaning as in RCW 70.02.010.
RCW 48.43.071