ICD-10-CM > S00-T88 > S90-S99 > S93 > S93.4 > S93.40 > S93.402 S93.402 Sprain of unspecified ligament of left ankle Non-Billable/Non-Specific Codes S93.402A..., initial encounterS93.402D..., subsequent encounterS93.402S..., sequela