Frostbite w tissue necros right knee and lower leg, init

This code signifies frostbite affecting the right knee and the entire lower leg, where the tissue has died due to the cold injury. This indicates a severe form of frostbite, involving irreversible damage to the affected skin and underlying tissues.

Apply this code for patients presenting with a new frostbite injury to the right knee and lower leg that has progressed to tissue necrosis. This is appropriate for the initial medical evaluation and treatment of such a severe cold-induced injury.

• Ensure documentation clearly specifies "right" knee and lower leg and confirms tissue necrosis.
• This code is for the initial encounter; subsequent care for the same injury will require a different encounter character.
• Do not use this code if tissue necrosis is not explicitly documented or if the frostbite is superficial.