CHOP has a new primary care clinical pathway for the diagnostic evaluation of development delay and intellectual disability. Its co-authors, Elana Huang, MD, primary care pediatrician, CHOP Care Network, and Hana Alharbi, MBBS, MS, pediatric geneticist, University of Tabuk, Saudi Arabia (who did a fellowship at CHOP), review the pathway and how it might help a primary care practitioner, including information about: testing tiers; limits of newborn screening panels; non-genetic test recommendations; which subspecialties to refer to for certain symptoms; recommendations for next steps when encountering recognizable syndromes; and more.