ICD-10-CM > S00-T88 > T36-T50 > T46 > T46.5 > T46.5X > T46.5X1 T46.5X1 Poisoning by other antihypertensive drugs, accidental (unintentional) Non-Billable/Non-Specific Applicable To Poisoning by other antihypertensive drugs NOS Codes T46.5X1A..., initial encounterT46.5X1D..., subsequent encounterT46.5X1S..., sequela