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