Editorial Notes
ICD-10 code S88.1 specifies a traumatic amputation at the level between the knee and ankle. This high-severity Chapter 19 code captures catastrophic lower extremity injuries occurring from industrial accidents, vehicular crashes, or major trauma. Because it represents a complete or partial loss of the lower leg, precise documentation is vital to capture severity of illness. Accurate reporting requires clear coding of the encounter type, laterality, and any concurrent traumatic injuries.