ICD-10-CM > S00-T88 > S80-S89 > S88 > S88.0 > S88.02 > S88.029 S88.029 Partial traumatic amputation at knee level, unspecified lower leg Non-Billable/Non-Specific Codes S88.029A..., initial encounterS88.029D..., subsequent encounterS88.029S..., sequela