Frostbite with tissue necrosis of left ankle, init encntr

This code signifies a severe cold-related injury to the left ankle, characterized by tissue death (necrosis) resulting from frostbite. This indicates a deep and damaging injury where the tissue has been irreversibly damaged due to prolonged exposure to freezing temperatures.

Use this code for a patient presenting for the first time with frostbite to the left ankle, where a physician has documented tissue necrosis. This applies to initial evaluations and treatment of the acute injury.

• Ensure documentation clearly specifies "left ankle" and "tissue necrosis" for accurate code assignment.
• Verify that this is the patient's initial encounter for this specific frostbite injury. Subsequent encounters will require a different seventh character.
• Do not use this code if tissue necrosis is not explicitly documented; other frostbite codes exist for less severe injuries.