Glossary

This glossary explains terms in the Medicare program.
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D

Deductible [glossary]

The amount you must pay for health care or prescriptions before Original Medicare, your prescription drug plan, or your other insurance begins to pay.

Demonstrations

Special projects, sometimes called "pilot programs" or "research studies," that test improvements in Medicare coverage, payment, and quality of care. They usually operate only for a limited time, for a specific group of people, and in specific areas.

Diethylstilbestrol (DES)

A drug given to pregnant women from the early 1940s until 1971 to help with common problems during pregnancy. The drug has been linked to cancer of the cervix or vagina in women whose mother took the drug while pregnant.

Drug list

A list of prescription drugs covered by a prescription drug plan or another insurance plan offering prescription drug benefits. This list is also called a formulary.

Durable medical equipment (DME) [Glossary]

Certain medical equipment, like a walker, wheelchair, or hospital bed, that's ordered by your doctor for use in the home.

Durable power of attorney

A legal document that names someone else to make health care decisions for you. This is helpful if you become unable to make your own decisions.