1 ICD-9-CM 840.3 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 840.3 should only be used for claims with a date of service on or before September 30, 2015.
Best Answer: It can be seen from anywhere in the southern hemisphere, but also some distance north of the Equator. Since it's centred at 60 degrees south, it can in theory be seen up to thirty degrees north at the equinoxes, but that wouldn't be the entire cross and it would vary according to the time of year.
Where can you see the aurora borealis? The aurora borealis is normally only visible from within 20 degrees of latitude of the North Pole. In North America, most viewing opportunities are limited to those in Alaska or the extreme northern parts of Canada. However, solar flares and geomagnetic activity can vastly increase the size of the aurora borealis, making its lights much more active and visible to much of the United States.