A parent-child relationship is established between an individual and a child if:
(1) The individual gives birth to the child, except as otherwise provided in RCW
26.26A.700 through
26.26A.785;
(2) There is a presumption under RCW
26.26A.115 of the individual's parentage of the child, unless the presumption is overcome in a judicial proceeding or a valid denial of parentage is made under RCW
26.26A.200 through
26.26A.265;
(4) The individual adopts the child;
(6) The individual's parentage of the child is established under RCW
26.26A.600 through
26.26A.635; or