ICD-10-CM > S00-T88 > S90-S99 > S91 > S91.2 > S91.25 > S91.256 S91.256 Open bite of unspecified lesser toe(s) with damage to nail Non-Billable/Non-Specific Codes S91.256A..., initial encounterS91.256D..., subsequent encounterS91.256S..., sequela