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.
In addition to the Northern Lights, Alaskan cruises offer a glimpse at rarely seen wildlife like polar bears, seals, whales and reindeer. The changing of the seasons bring wildflowers in the springtime and colored leaves in the fall, but you can also see never-melting glaciers rising up out of the arctic waters.