ICD-10-CM > S00-T88 > T36-T50 > T49 > T49.7 > T49.7X > T49.7X5 T49.7X5 Adverse effect of dental drugs, topically applied Non-Billable/Non-Specific Codes T49.7X5A..., initial encounterT49.7X5D..., subsequent encounterT49.7X5S..., sequela