ICD-10-CM > S00-T88 > S90-S99 > S96 > S96.8 > S96.81 > S96.812 S96.812 Strain of other specified muscles and tendons at ankle and foot level, left foot Non-Billable/Non-Specific Codes S96.812A..., initial encounterS96.812D..., subsequent encounterS96.812S..., sequela