Frostbite with tissue necrosis of thorax, initial encounter

This code signifies frostbite affecting the chest area, where the tissue has died due to the cold exposure. It indicates a severe form of frostbite that has progressed beyond superficial damage, resulting in irreversible tissue injury. This initial encounter designation means the patient is receiving active treatment for this specific frostbite injury for the first time.

Assign this code when a patient presents with frostbite of the thorax, and clinical assessment confirms the presence of tissue necrosis (e.g., black, mummified tissue, loss of sensation, non-blanching skin). This is appropriate for the initial visit or admission for the treatment of this specific frostbite episode.

• Ensure documentation clearly specifies the thorax as the affected body region and confirms tissue necrosis.
• Verify that this is indeed the patient's first encounter for this particular frostbite injury. Subsequent encounters would require a different seventh character.
• Do not use this code for frostbite without tissue necrosis or for frostbite affecting other body sites.