ABN stands for Advanced Beneficiary Notification. An ABN must be signed prior to providing a Medicare service or test to document that the patient is willing to assume responsibility for payment of services that Medicare may not cover when subject to either National or Local Coverage Determinations (NCD) or (LCD).
Chinchillas are crepuscular (most active around dawn and dusk) rodents, slightly larger and more robust than ground squirrels. They are native to the Andes mountains in South America and live in colonies called  herds  at high elevations up to 4,270 m (14,000 ft).
Chinchilla Facts #5: Can See With Whiskers. Chinchillas see with their whiskers. Even though they have big eyes, the eyes are under developed, making the Chinchilla not see well with it. They have long whiskers which can grow half the length of their body to help them âseeâ or rather feel things around them. Chinchilla Facts #6: Takes Dust Baths