Okla. Stat. tit. 10, § 10-7700-621

of experts - Medical bills.

A. Except as otherwise provided in subsection C of this

section, a record of a genetic-testing expert is admissible as

evidence of the truth of the facts asserted in the report unless a

party objects to its admission within fourteen (14) days after its

mailing and cites specific grounds for exclusion. The admissibility

of the report is not affected by whether the testing was performed:

1. Voluntarily or pursuant to an order of the court or the

Department of Human Services; or

Oklahoma Statutes - Title 10. Children Page 410

2. Before or after the commencement of the proceeding.

B. A party objecting to the results of genetic testing may call

one or more genetic-testing experts to testify in person or by

telephone, videoconference, deposition, or another method approved

by the court. Unless otherwise ordered by the court, the party

offering the testimony bears the expense for the expert testifying.

C. If a child has a presumed, acknowledged, or adjudicated

father, the results of genetic testing are inadmissible to

adjudicate parentage unless performed pursuant to an order of the

court under Sections 7700-502 and 7700-608 of this title.

D. Copies of bills for genetic testing and for prenatal and

postnatal health care for the mother and child which are furnished

to the adverse party not less than ten (10) days before the date of

a hearing are admissible to establish:

1. The amount of the charges billed; and

2. That the charges were reasonable, necessary, and customary.