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.
Mother Natureâs laser light show! The Northern Lights or Aurora Borealis are undeniably one of natureâs most spectacular visual displays. Due to Icelandâs location just outside the Arctic Circle, and minimal light pollution, this North Atlantic island is a prime location for viewing the brightly colored waves of light illuminating the night sky.