CO-OPTATION. A concurring choice. Sometimes applied to the act of the members of a corporation, in choosing a person to supply a vacancy. in their body. 1  Facebook.
What's not covered by Part A & Part B? Medicare doesn't cover everything. If you need certain services that Medicare doesn't cover, you'll have to pay for them yourself unless you have other insurance or you're in a Medicare health plan that covers these services. Even if Medicare covers a service or item, you generally have to pay your deductible, coinsurance, and copayments. Some of the items and services that Medicare doesn't cover include: 1  Long-term care (also called custodial care)  Most dental care.
Dental insurance will also cover fillings, root canals, crowns and the like. However, it usually does not cover services like orthodontics, whitening or veneers, all of which are considered cosmetic. Also, there is usually a waiting period before dental insurance will cover anything beyond the basics.