ICD-10-CM > S00-T88 > S80-S89 > S86 > S86.8 > S86.89 > S86.899 S86.899 Other injury of other muscle(s) and tendon(s) at lower leg level, unspecified leg Non-Billable/Non-Specific Codes S86.899A..., initial encounterS86.899D..., subsequent encounterS86.899S..., sequela