Gov. Code, § 21493

(a) If a person had no beneficiary designation in effect on the date of death, any benefit payable shall be paid to the survivors of the person in the following order:

(1) The decedent’s spouse.

(2) The decedent’s natural or adopted children, including a natural child adopted by another who meets the following criteria:

(A) The natural parent and adopted child lived together at any time as parent and child or the natural parent was married to or was cohabiting with the other natural parent at the time the child was conceived and died before the birth of the child; and

(B) The child was adopted by the spouse of either of the natural parents or after the death of either of the natural parents or the child is a natural child adopted by another as that phrase is defined or construed by the Probate Code.

(3) The decedent’s parents.

(4) The decedent’s brothers and sisters.

(b) If a deceased person had no effective beneficiary designation and there are no survivors in the groups specified in subdivision (a) who are entitled to the benefit under this section, the benefit shall be paid to the estate of the decedent, if the estate is either probated or subject to probate. Any benefit payable by this system may be paid either to the estate or to the duly authorized representative or representatives of the estate upon receipt by this system of a court order appointing an executor, administrator, or personal representative, or, in the case of an estate with a total value not exceeding the amount prescribed in paragraph (2) of subdivision (a) of Section 7660 of the Probate Code, to a public administrator upon receipt by this system of a written certification of authority for summary administration from that public administrator.

(c) If there are no survivors in the groups specified in subdivision (a) and the estate of the person described in subdivision (b) does not require probate, irrespective of whether probate is filed, the benefit shall be paid directly to the decedent’s trust.

(d) If there are no survivors in the groups specified in subdivision (a) and the estate of the person described by subdivision (b) does not require probate, irrespective of whether probate is filed, and the decedent has not established a trust as described by subdivision (c), the benefit shall be paid directly to the surviving next of kin in the following order:

(1) Stepchildren.

(2) Grandchildren, including stepgrandchildren.

(3) Nieces and nephews.

(4) Great grandchildren.

(5) Cousins.

(e) For purposes of determining the application of subdivisions (b), (c), and (d), the amount of the benefit payable from this system shall not be included in calculating the worth of the estate.

(f) For purposes of this section, the term “stepchild” shall mean a person who had a regular parent-child relationship with the deceased person.