There are 3 names in this directory beginning with the letter D.
An amount you could owe during a coverage period (usually one year) for covered health care services before your plan begins to pay. An overall deductible applies to all or almost all covered items and services. A plan with an overall deductible may also have separate deductibles that apply to specific services or groups of services. A plan may also have only separate deductibles. (For example, if your deductible is $1000, your plan won't pay anything until you've met your $1000 deductible for covered health care services subject to the deductible.)
Tests to figure out what your health problem is. For example, an x-ray can be a diagnostic test to see if you have a broken bone.