ICD-10-CM > S00-T88 > S80-S89 > S88 > S88.1 > S88.12 S88.12 Partial traumatic amputation at level between knee and ankle Non-Billable/Non-Specific Codes S88.121Partial traumatic amputation at level between knee and ankle, right lower legS88.121A..., initial encounterS88.121D..., subsequent encounterS88.121S..., sequelaS88.122Partial traumatic amputation at level between knee and ankle, left lower legS88.122A..., initial encounterS88.122D..., subsequent encounterS88.122S..., sequelaS88.129Partial traumatic amputation at level between knee and ankle, unspecified lower legS88.129A..., initial encounterS88.129D..., subsequent encounterS88.129S..., sequela