preferred_name: Opioid-use disorder risk genotyping panel, 16 common variants (ABCB1, COMT, DAT1, DBH, DOR, DRD1, DRD2, DRD4, GABA, GAL, HTR2A, HTTLPR, MTHFR, MUOR, OPRK1, OPRM1), in buccal swab, algorithm reported as positive or negative risk