ICD-10-CM > S00-T88 > S90-S99 > S96 > S96.9 > S96.99 > S96.999 S96.999 Other specified injury of unspecified muscle and tendon at ankle and foot level, unspecified foot Non-Billable/Non-Specific Codes S96.999A..., initial encounterS96.999D..., subsequent encounterS96.999S..., sequela