Original Medicare covers many hospital and medical services, but it does not cover every health-related expense. Before agreeing to care, distinguish an excluded service from a covered service that has cost sharing or requires specific medical criteria.
Common exclusions and distinctions
| Expense | Important distinction |
|---|---|
| Routine dental services and dentures | Limited dental services tied to certain covered medical treatments may qualify. |
| Routine eye exams for glasses | Medical eye care and certain post-cataract corrective lenses follow separate rules. |
| Hearing aids and fitting exams | Some medically indicated diagnostic hearing services are separate covered benefits. |
| Long-term help with personal activities | Custodial care is different from qualifying skilled nursing or home health. |
| Routine physical exam | The covered Medicare Wellness visit is a different service. |
| Massage or ordinary cosmetic procedures | A therapeutic description or provider recommendation alone does not establish Medicare coverage. |
Four questions before you pay
- What is the exact service and procedure code?
- Is it excluded, or could a particular medical exception apply?
- What clinical documentation and provider requirements must be met?
- What written notice, estimate or coverage decision is available?
A provider saying a service is beneficial is not the same as Medicare agreeing to pay. Likewise, a covered service can still have a deductible, coinsurance, frequency limit or facility charge.
Does other insurance help?
Some Medicare Advantage plans offer extra dental, vision or hearing benefits, subject to their own conditions and limits. A separate policy, employer benefit or Medicaid may cover particular expenses. Verify the actual contract or program rather than assuming all supplemental coverage fills every gap.
Medigap mainly helps with specified Original Medicare cost sharing. It generally does not create routine dental coverage or pay for long-term custodial care.
If a claim is denied
Read the specific reason and appeal instructions. An exclusion, missing documentation and a billing mistake call for different responses. Ask the provider to correct inaccurate billing and use the relevant appeal process when you disagree with a coverage decision. The applicable notices and rules determine financial responsibility; do not assume every denial automatically makes the patient liable.
Related coverage questions
- Medicare Part A and Part B: What Each Covers
- Medicare Part B: Medical Coverage, Costs and Enrollment
- Medicare Premiums and Deductibles: 2026 Medical Costs