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