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.
Northern Lights near the town of Svovaer in the Lofoten Islands Why Go: The northern town of TromsÃ¸ teems with Aurora Borealis activity when those extended summer days are long gone. Its location above the Arctic Circle, and within the Northern Lights zone, makes it one of the top places to view shimmering green lights.