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.
View tour. The Northern Lights tour in Iceland takes you to see a spectacular natural phenomenon which happens during the winter months. The Northern Lights, also known as Aurora Borealis, are caused by the interaction of particles from the sun with the upper atmosphere near the North Pole.