ICD-10-CM > S00-T88 > T36-T50 > T46 > T46.6 > T46.6X > T46.6X6 T46.6X6 Underdosing of antihyperlipidemic and antiarteriosclerotic drugs Non-Billable/Non-Specific Codes T46.6X6A..., initial encounterT46.6X6D..., subsequent encounterT46.6X6S..., sequela