ICD-10-CM > S00-T88 > T36-T50 > T49 > T49.5 > T49.5X > T49.5X5 T49.5X5 Adverse effect of ophthalmological drugs and preparations Non-Billable/Non-Specific Codes T49.5X5A..., initial encounterT49.5X5D..., subsequent encounterT49.5X5S..., sequela