Wash. Rev. Code § 48.165.045
(1) By December 31, 2010, the lead organization shall develop implementation guidelines and promote widespread adoption of such guidelines for:
(3) Nothing in this section or in the guidelines developed by the lead organization shall inhibit an individual payor's ability to employ, and not disclose to providers, temporary code edits for the purpose of detecting and deterring fraudulent billing activities. Though such temporary code edits are not required to be disclosed to providers, the guidelines shall require that:
[ 2009 c 298 s 9.]