NCDs (National Coverage Determinations) and LCDs (Local Coverage Determinations) are. decisions by Medicare and their administrative contractors that provide coverage information. and determine whether services are reasonable and necessary on certain services offered by. participating providers.
A tax (from the Latin taxo) is a financial charge or other levy imposed upon a taxpayer (an individual or legal entity) by a state or the functional equivalent of a state to fund various public expenditures. A failure to pay, or evasion of or resistance to taxation, is usually punishable by law.
A tax deduction is a reduction in tax obligation from a taxpayer's gross income. Tax deductions can be the result of a variety of events that the taxpayer experiences over the course of the year. Tax deductions are removed from taxable income, also known as the adjusted gross income, and thus lowers the taxpayer's overall tax liability.