ICD-10 Diagnosis Code T66.XXXA

Radiation sickness, unspecified, initial encounter

Diagnosis Code T66.XXXA

ICD-10: T66.XXXA
Short Description: Radiation sickness, unspecified, initial encounter
Long Description: Radiation sickness, unspecified, initial encounter
This is the 2017 version of the ICD-10-CM diagnosis code T66.XXXA

Valid for Submission
The code T66.XXXA is valid for submission for HIPAA-covered transactions.

Code Classification
  • Injury, poisoning and certain other consequences of external causes (S00–T98)
    • Other and unspecified effects of external causes (T66-T78)
      • Radiation sickness, unspecified (T66)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code T66.XXXA is grouped in the following Diagnostic Related Group(s) (MS-DRG V34.0)

  • 922 - OTHER INJURY, POISONING AND TOXIC EFFECT DIAGNOSES WITH MCC
  • 923 - OTHER INJURY, POISONING AND TOXIC EFFECT DIAGNOSES WITHOUT MCC

Information for Patients


Radiation Exposure

Radiation is energy that travels in the form of waves or high-speed particles. It occurs naturally in sunlight. Man-made radiation is used in X-rays, nuclear weapons, nuclear power plants and cancer treatment.

If you are exposed to small amounts of radiation over a long time, it raises your risk of cancer. It can also cause mutations in your genes, which you could pass on to any children you have after the exposure. A lot of radiation over a short period, such as from a radiation emergency, can cause burns or radiation sickness. Symptoms of radiation sickness include nausea, weakness, hair loss, skin burns and reduced organ function. If the exposure is large enough, it can cause premature aging or even death. You may be able to take medicine to reduce the radioactive material in your body.

Environmental Protection Agency

  • Radiation sickness


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