ICD-10 Diagnosis Code T67.1XXS

Heat syncope, sequela

Diagnosis Code T67.1XXS

ICD-10: T67.1XXS
Short Description: Heat syncope, sequela
Long Description: Heat syncope, sequela
This is the 2019 version of the ICD-10-CM diagnosis code T67.1XXS

Valid for Submission
The code T67.1XXS 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)
      • Effects of heat and light (T67)

Information for Medical Professionals

Information for Patients


Also called: Syncope

Fainting is a temporary loss of consciousness. If you're about to faint, you'll feel dizzy, lightheaded, or nauseous. Your field of vision may "white out" or "black out." Your skin may be cold and clammy. You lose muscle control at the same time, and may fall down.

Fainting usually happens when your blood pressure drops suddenly, causing a decrease in blood flow to your brain. It is more common in older people. Some causes of fainting include

  • Heat or dehydration
  • Emotional distress
  • Standing up too quickly
  • Certain medicines
  • Drop in blood sugar
  • Heart problems

When someone faints, make sure that the airway is clear and check for breathing. The person should stay lying down for 10-15 minutes. Most people recover completely. Fainting is usually nothing to worry about, but it can sometimes be a sign of a serious problem. If you faint, it's important to see your health care provider and find out why it happened.

  • Fainting (Medical Encyclopedia)


Heat Illness

Also called: Heat exhaustion, Sunstroke

Your body normally cools itself by sweating. During hot weather, especially when it is very humid, sweating just isn't enough to cool you off. Your body temperature can rise to dangerous levels and you can develop a heat illness.

Most heat illnesses happen when you stay out in the heat too long. Exercising and working outside in high heat can also lead to heat illness. Older adults, young children, and those who are sick or overweight are most at risk. Taking certain medicines or drinking alcohol can also raise your risk.

Heat-related illnesses include

  • Heat stroke - a life-threatening illness in which body temperature may rise above 106° F in minutes. Symptoms include dry skin, a rapid, strong pulse, dizziness, nausea, and confusion. If you see any of these signs, get medical help right away.
  • Heat exhaustion - an illness that can happen after several days of exposure to high temperatures and not enough fluids. Symptoms include heavy sweating, rapid breathing, and a fast, weak pulse. If it is not treated, it can turn into heat stroke.
  • Heat cramps - muscle pains or spasms that happen during heavy exercise. You usually get them in your abdomen, arms, or legs.
  • Heat rash - skin irritation from excessive sweating. It is more common in young children.

You can lower your risk of heat illness by drinking fluids to prevent dehydration, replacing lost salt and minerals, and limiting your time in the heat.

Centers for Disease Control and Prevention

  • Heat emergencies (Medical Encyclopedia)
  • How to avoid overheating during exercise (Medical Encyclopedia)
  • Protecting Workers from Heat Stress (Occupational Safety and Health Administration)
  • Protecting Yourself from Heat Stress (National Institute for Occupational Safety and Health)

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