When we use a negative construction (with not) in the main clause, until means 'not before'. I won't (will not) start cooking until you come home. until three kilometres.
Medicare Part A is hospital insurance that covers inpatient hospital care and certain home care. Medicare Part A is usually free if you or your spouse paid Medicare taxes while working. If not, it can cost up to $413 each month in 2017. Hospital and skilled nursing facility stays come with deductibles and co-insurance.
Medicare Part A. Part A Medicare covers inpatient services provided in a hospital, as well as follow-up care in a skilled nursing facility (SNF). It also covers hospice care, home health care, and inpatient care in a religious non-medical healthcare institution. Medicare Part A holds patients responsible for a deductible, an out-of-pocket expense by patients, before benefits are paid directly by Medicare.