Wash. Rev. Code § 26.09.310
No health care provider or facility, or their agent, shall be liable for damages in any civil action brought by a parent or guardian based only on a lack of the parent or guardian's consent for medical care of a minor child, if consent to the care has been given by a parent or guardian of the minor. The immunity provided by this section shall apply regardless of whether:
[ 2008 c 6 s 1022; 1989 c 377 s 1.]
Part headings not law—Severability—2008 c 6: See RCW 26.60.900 and 26.60.901.