ICD-10-CM > S00-T88 > S00-S09 > S04 > S04.0 > S04.03 > S04.032 S04.032 Injury of optic tract and pathways, left side Non-Billable/Non-Specific Codes S04.032A..., initial encounterS04.032D..., subsequent encounterS04.032S..., sequela