Inpatient procedure sequencing question

This ICD-9 example is for a bilateral lung transplant from a cadaver with accompanying cardiopulmonary bypass. The primary code is 33.52 for the transplant. The remaining codes are 39.61 for the bypass and 00.93 for the donor source.

What is the correct sequencing for the latter two? So far, I've seen this same example with two different answers and am not sure which one is right, or if it even matters.

Thanks.

Inpatient procedure sequencing question