ICD-10-CM > S00-T88 > T36-T50 > T49 > T49.7 > T49.7X > T49.7X6 T49.7X6 Underdosing of dental drugs, topically applied Non-Billable/Non-Specific Codes T49.7X6A..., initial encounterT49.7X6D..., subsequent encounterT49.7X6S..., sequela