ICD-10-CM Code W94.11

Exposure to residence or prolonged visit at high altitude

Version 2020 Non-Billable Code

Not Valid for Submission

W94.11 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of exposure to residence or prolonged visit at high altitude. The code is NOT valid for the year 2020 for the submission of HIPAA-covered transactions.

ICD-10:W94.11
Short Description:Exposure to residence or prolonged visit at high altitude
Long Description:Exposure to residence or prolonged visit at high altitude

Consider the following ICD-10 codes with a higher level of specificity:

Index of External Cause of Injuries

References found for the code W94.11 in the External Cause of Injuries Index:

    • Air
      • pressure
        • low, prolonged
          • due to residence or long visit at high altitude
    • Alpine sickness
    • Altitude sickness
    • Andes disease
    • Disease
      • Andes
    • Disease
      • range
    • Mountain sickness
    • Prolonged
      • stay in
        • high altitude as cause of anoxia, barodontalgia, barotitis or hypoxia
    • Range disease
    • Sickness
      • alpine
    • Sickness
      • mountain

Code Classification

  • External causes of morbidity and mortality (V01–Y98)
    • Exposure to electric current, radiation and extreme ambient air temperature and pressure (W85-W99)
      • Expsr to high and low air pressr and changes in air pressure (W94)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients


Traveler's Health

Traveling can increase your chances of getting sick. A long flight can increase your risk for deep vein thrombosis. Once you arrive, it takes time to adjust to the water, food, and air in another place. Water in developing countries can contain viruses, bacteria, and parasites that cause stomach upset and diarrhea. Be safe by using only bottled or purified water for drinking, making ice cubes, and brushing your teeth. If you use tap water, boil it or use iodine tablets. Food poisoning can also be a risk. Eat only food that is fully cooked and served hot. Avoid unwashed or unpeeled raw fruits and vegetables.

If you are traveling out of the country, you might also need vaccinations or medicines to prevent specific illnesses. Which ones you need will depend on what part of the world you're visiting, the time of year, your age, overall health status, and previous immunizations. See your doctor 4 to 6 weeks before your trip. Most vaccines take time to become effective.

Centers for Disease Control and Prevention


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