ICD-10-CM > S00-T88 > T36-T50 > T49 > T49.5 > T49.5X > T49.5X4 T49.5X4 Poisoning by ophthalmological drugs and preparations, undetermined Non-Billable/Non-Specific Codes T49.5X4A..., initial encounterT49.5X4D..., subsequent encounterT49.5X4S..., sequela