ICD-10-CM > S00-T88 > S90-S99 > S93 > S93.5 > S93.52 > S93.523 S93.523 Sprain of metatarsophalangeal joint of unspecified great toe Non-Billable/Non-Specific Codes S93.523A..., initial encounterS93.523D..., subsequent encounterS93.523S..., sequela