If you're not sure what those terms mean, this glossary will help.
Keep it handy for future reference.
A - D A - D includes definitions for words such as actual charge through durable medical equipment (DME). E - H E - H includes explanations of election period through hospital insurance. I - L I - L defines words ranging from individual allowance to lock-in period. M - P M - P explains phrases such as mail-order pharmacy through primary care physician (PCP). Q - T Q - T covers words such as qualified Medicare beneficiary (QMB) through treatment. U - Z U - Z explains words such as urgently needed care through worldwide coverage (foreign travel benefit).