ICD-10-CM > S00-T88 > S90-S99 > S96 > S96.8 > S96.81 > S96.811 S96.811 Strain of other specified muscles and tendons at ankle and foot level, right foot Non-Billable/Non-Specific Codes S96.811A..., initial encounterS96.811D..., subsequent encounterS96.811S..., sequela