ICD-10-CM > S00-T88 > S80-S89 > S86 > S86.8 > S86.80 S86.80 Unspecified injury of other muscles and tendons at lower leg level Non-Billable/Non-Specific Codes S86.801Unspecified injury of other muscle(s) and tendon(s) at lower leg level, right legS86.801A..., initial encounterS86.801D..., subsequent encounterS86.801S..., sequelaS86.802Unspecified injury of other muscle(s) and tendon(s) at lower leg level, left legS86.802A..., initial encounterS86.802D..., subsequent encounterS86.802S..., sequelaS86.809Unspecified injury of other muscle(s) and tendon(s) at lower leg level, unspecified legS86.809A..., initial encounterS86.809D..., subsequent encounterS86.809S..., sequela