ICD-10-CM > S00-T88 > T36-T50 > T46 > T46.7 > T46.7X > T46.7X6 T46.7X6 Underdosing of peripheral vasodilators Non-Billable/Non-Specific Codes T46.7X6A..., initial encounterT46.7X6D..., subsequent encounterT46.7X6S..., sequela