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.
4. Ivalo, Finland. Located in the Arctic right near the Russian border, Ivalo is one of the finest places on earth to experience the lights. In many cases the lights are so bright here that you can see them from the city. If you are having a hard time seeing the Northern Lights, hire a tour guide to take you out into the Arctic areas to experience them in a wilderness area.