ICD-10-CM > S00-T88 > S80-S89 > S88 > S88.0 > S88.01 S88.01 Complete traumatic amputation at knee level Non-Billable/Non-Specific Codes S88.011Complete traumatic amputation at knee level, right lower legS88.011A..., initial encounterS88.011D..., subsequent encounterS88.011S..., sequelaS88.012Complete traumatic amputation at knee level, left lower legS88.012A..., initial encounterS88.012D..., subsequent encounterS88.012S..., sequelaS88.019Complete traumatic amputation at knee level, unspecified lower legS88.019A..., initial encounterS88.019D..., subsequent encounterS88.019S..., sequela