S81.80 Unspecified open wound of lower legNon-billable header with 3 child codes.
S81.801 Unspecified open wound, right lower legS81.802 Unspecified open wound, left lower legS81.809 Unspecified open wound, unspecified lower legM23 Internal derangement of knee ("current injury - see injury of knee and lower leg (S80-S89)")S71 Open wound of hip and thigh ("open wound of knee and lower leg (S81.-)")S84 Injury of nerves at lower leg level ("any associated open wound (S81.-)")S85 Injury of blood vessels at lower leg level ("any associated open wound (S81.-)")S86 Injury of muscle, fascia and tendon at lower leg level ("any associated open wound (S81.-)")S81.059 Open bite, unspecified kneeS81.059A Open bite, unspecified knee, initial encounterS81.059D Open bite, unspecified knee, subsequent encounterS81.059S Open bite, unspecified knee, sequelaS81.8 Open wound of lower legS81.80 Unspecified open wound of lower leg (this code)S81.801 Unspecified open wound, right lower legS81.801A Unspecified open wound, right lower leg, initial encounterS81.801D Unspecified open wound, right lower leg, subsequent encounterS81.801S Unspecified open wound, right lower leg, sequelaS81.802 Unspecified open wound, left lower leg