These are 5 position alpha-numeric codes comprising the d series. All other level II codes and descriptors are approved and maintained jointly by the alpha-numeric editorial panel (consisting of CMS, the Health Insurance Association of America, and the Blue Cross and Blue Shield Association).
Alaska: Although Alaska enjoys a high volume of aurora activity, its cruises are not often mentioned as northern lights cruises. During the Alaska cruise season, it's rarely dark enough for the lights to be visible.
Where to see the Northern lights in Reykjavik. If you have a car, drive 15 minutes out to the President's residence, Bessastadir, in a town called Ãlftanes. Here you can watch the Northern lights from across a bay, as they dance above the cityscape of Reykjavik while reflecting in the sea.