T70.2: Other and unspecified effects of high altitude

You have symptoms from being at a high altitude.

The air pressure is low at high altitude and there is less oxygen than usual. The body must adapt to the changed environment in the case of an unaccustomed stay at high altitude.

You can get altitude sickness from an altitude of about 2500 meters, for example. Altitude sickness is more likely to occur if you ascend quickly or overexert yourself physically, among other things.

If you are altitude sick, you may have various symptoms. For example, you may feel weak or dizzy. You also may have headaches and need to vomit. If the altitude sickness is very pronounced, water can also accumulate in the lungs or in the brain. You may then have shortness of breath or be very sleepy. If you have been altitude sick once, then you are likely to become altitude sick again.

Additionally, when the air pressure changes at high altitude, the air-filled cavities in the body have to adjust. If this does not work properly, the air-filled cavities in the body may become damaged. Air-filled cavities in the body include the ears, the nasal sinuses, and the lungs, for example.