Contractor policy

Policy developed by Centers for Medicare and Medicaid Services (CMS) contractors (fiscal intermediary or carrier, affiliated contractor, provider service carrier) and used to make coverage and coding determinations. It is developed when there is an absence of national coverage policy for a service or all of the uses of a service; there is a need to interpret national coverage policy; or there is a need for local coding rules.

Contrast medium

Substance that is injected into the body, introduced via catheter, or swallowed to allow radiographic images of internal structures that would normally be difficult to see on x-ray films. Also called contrast material.

Contribution limit

Maximum yearly contribution legally permitted to a participant’s account in a defined benefit pension plan (DBPP). This may include employer and employee contributions and forfeitures that have been reallocated from other participants’ accounts. The contribution limit is set under Section 415 of the Internal Revenue Code.