Requiring coverage of pharmacogenomic testing for psychotropic medications.

HB 1425 requires Washington health insurance plans (including Medicaid) to cover genetic testing that helps match patients with effective mental health medications, starting January 1, 2026. Insurers cannot require prior authorization or force patients to try ineffective medications first. Coverage must include tests approved by the FDA or supported by clinical guidelines and research evidence. This applies specifically to psychotropic medications prescribed for conditions like depression, aiming to reduce the trial-and-error process that leaves many patients without relief.