ICD-10-CM > S00-T88 > S90-S99 > S91 > S91.1 > S91.15 > S91.155 S91.155 Open bite of left lesser toe(s) without damage to nail Non-Billable/Non-Specific Codes S91.155A..., initial encounterS91.155D..., subsequent encounterS91.155S..., sequela