ICD-10-CM > S00-T88 > T36-T50 > T46 > T46.7 > T46.7X > T46.7X4 T46.7X4 Poisoning by peripheral vasodilators, undetermined Non-Billable/Non-Specific Codes T46.7X4A..., initial encounterT46.7X4D..., subsequent encounterT46.7X4S..., sequela