ICD-10 Diagnosis Code T66.XXXS

Radiation sickness, unspecified, sequela

Diagnosis Code T66.XXXS

ICD-10: T66.XXXS
Short Description: Radiation sickness, unspecified, sequela
Long Description: Radiation sickness, unspecified, sequela
This is the 2018 version of the ICD-10-CM diagnosis code T66.XXXS

Valid for Submission
The code T66.XXXS 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.XXXS is grouped in the following Diagnostic Related Group(s) (MS-DRG V35.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

Present on Admission (POA) Additional informationCallout TooltipPresent on Admission
The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement.

The code T66.XXXS is exempt from POA reporting.

  • Acute non-infective otitis externa
  • Acute radiation disease
  • Acute radiation disease
  • Acute radiation nephritis
  • Acute radiation otitis externa
  • Adverse effect of radiation therapy
  • Anemia caused by physical agent
  • Anemia caused by radiation
  • Aplastic anemia caused by radiation
  • Chronic radiation nephritis
  • Chronic radiation sickness
  • Coronary arteriosclerosis caused by radiation
  • Disorder caused by exposure to ionizing radiation
  • Early radiation dermatitis
  • Effects of occupational exposure to radiation
  • Effects of overexposure to electromagnetic radiation
  • Heart disease caused by ionizing radiation
  • Immunodeficiency secondary to radiation therapy
  • Infertile
  • Infertility caused by radiation
  • Late effect of radiation
  • Late effect of radiation
  • Late effect of radiation therapy
  • Nausea and vomiting
  • Neutropenia caused by irradiation
  • Occupational injury
  • Radiation dermatitis
  • Radiation nephritis
  • Radiation recall syndrome
  • Radiation sickness
  • Radiation therapy complication
  • Radiation therapy complication
  • Radiation-induced nausea and vomiting
  • Subacute radiation sickness
  • Toxicity due to radiotherapy

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 (Medical Encyclopedia)

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