Utilization of genetic testing: Analysis of 4,499 prior authorization requests for molecular genetic tests at four US regional health plans.

Continuous advances in genetic testing methodologies and an increased understanding of the genetic mechanisms of diseases have fueled genetic testing utilization across health care specialties. To our knowledge, national trends in the ordering of genetic testing have not been studied broadly across clinical indications, testing methodologies, and ordering provider specialties. We performed a retrospective analysis of 4,499 complete prior authorization requests for molecular genetic testing submitted to four regional health plans' commercial lines of business between May 1, 2019 and May 31, 2019.