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 #7: Does âFur Slipâ. Chinchillas can shed their fur in large clumps if they feel threatened or under attack. They do what is called a âfur slipâ. This is not the same as shedding, plus a Chinchilla hardly ever sheds anyway.