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. 2  For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
The Interior (especially Fairbanks) and Far North regions are considered the best in Alaska for northern lights viewing, although the aurora can be spotted anywhere in Alaska.
... that if conditions are just right, you can see the aurora borealis here in Minnesota? Although the northern lights are normally only visible at very high latitudes in places like Alaska and Canada, on extremely active days the auroral oval expands to more southern latitudes.