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2025 ICD-10-CM code T34.01

Frostbite with tissue necrosis of ear.

Use secondary code(s) from Chapter 20, External causes of morbidity (V00-Y99), to indicate the cause of the injury.An additional code from category Z18.- should be used if there is a retained foreign body.

Medical necessity for the use of this code is established by the presence of frostbite with tissue damage in the ear due to exposure to cold temperatures.The documentation must clearly support the diagnosis.

Clinicians diagnosing and treating frostbite, including primary care physicians, emergency medicine physicians, and potentially specialists like dermatologists or plastic surgeons, are responsible for accurately documenting the extent of the injury and applying the appropriate ICD-10-CM code.

In simple words: This code represents severe frostbite of the ear resulting in tissue death.

Frostbite with tissue necrosis of the ear. This indicates that the frostbite has caused tissue death in the ear.

Example 1: A patient presents to the emergency department after prolonged exposure to freezing temperatures with a blackened and numb ear. Upon examination, the physician diagnoses frostbite with tissue necrosis of the ear., A homeless individual is brought to the hospital during a winter storm. They have severe frostbite on their ear, with clear signs of tissue death., A mountain climber develops frostbite on their ear during an expedition. After returning, they seek medical attention, and the doctor determines there is tissue necrosis.

Documentation should include a detailed description of the affected area (ear), the presence and extent of tissue necrosis, and the circumstances leading to the frostbite.Supporting documentation such as photographs or diagnostic imaging may be helpful.

** Excludes1: birth trauma (P10-P15), obstetric trauma (O70-O71). Excludes2: hypothermia and other effects of reduced temperature (T68, T69.-).

  • Specialties:Emergency Medicine, Primary Care, Dermatology, Plastic Surgery
  • Place of Service:Emergency Room - Hospital, Office, Inpatient Hospital, Outpatient Hospital, Homeless Shelter, Mobile Unit
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