Does Medicare Cover Surgery? Complete Guide to Surgical Coverage

Understanding how Medicare covers surgical procedures is crucial for planning your healthcare and managing costs. Whether you need a routine procedure or major surgery, this guide explains what Medicare pays for and what you'll owe.

!An operating room, representing Medicare surgery coverage

How Medicare Covers Inpatient Surgery

> About 54% of Medicare beneficiaries are in Medicare Advantage, where this care runs through the plan's network; the rest use Original Medicare, accepted by any participating provider nationwide. (Source: CMS / KFF, 2024.)

When you're admitted to a hospital for surgery, Medicare Part A (Hospital Insurance) covers your care. Part A pays for:

• Hospital room and board (semi-private room)
• Operating room and equipment
• Nursing care
• Meals and dietary services
• Medications administered during your stay
• Lab tests, X-rays, and other diagnostic tests

Your Part A Costs for Hospital Surgery

In 2025, you'll pay the Part A deductible of $1,676 for each benefit period. This covers the first 60 days of hospitalization. If your stay exceeds 60 days, daily coinsurance applies:

• Days 61-90: $419/day coinsurance
• Days 91-150: $838/day coinsurance (lifetime reserve days)

Outpatient Surgery Coverage Under Part B

Many surgeries today are performed on an outpatient basis at hospitals or ambulatory surgical centers. Medicare Part B covers these procedures, including:

• Cataract surgery
• Colonoscopies and endoscopies
• Joint arthroscopy
• Hernia repair
• Skin lesion removal
• Many cardiac procedures

After meeting your Part B deductible ($257 in 2025), you typically pay 20% coinsurance for outpatient surgery.

Surgeon and Anesthesiologist Fees

Part B also covers your surgeon's and anesthesiologist's fees. Medicare pays 80% of the Medicare-approved amount, and you're responsible for the remaining 20% coinsurance.

Important: If your surgeon "accepts assignment," they agree to accept Medicare's approved amount as payment in full. If they don't, they can charge up to 15% more (the "limiting charge").

What Surgeries Does Medicare NOT Cover?

Medicare doesn't cover:

• Cosmetic surgery (unless needed after an accident or to improve function)
• Experimental or investigational procedures
• Surgeries not deemed medically necessary
• Weight loss surgery (unless you meet specific criteria)
• LASIK and other refractive eye surgeries

Pre-Surgery Requirements

Before many surgeries, Medicare requires:

1. Prior authorization for certain procedures 2. Documentation of medical necessity 3. Pre-operative testing (covered by Part B) 4. Consultation with your primary care physician

Reducing Your Surgical Costs

Several options can help lower your out-of-pocket costs for surgery:

Medigap Coverage

Medicare Supplement (Medigap) plans can cover:

• Part A deductibles (Plans B, C, D, F, G, M, N)
• Part A coinsurance (all plans)
• Part B coinsurance (varies by plan)

Medicare Advantage

Many Medicare Advantage plans have lower cost-sharing for surgeries, plus annual out-of-pocket maximums that cap your total costs.

Getting Help with Surgical Coverage Questions

If you're facing surgery and unsure about coverage, a licensed Medicare advisor can help you understand your options and potentially switch to coverage that better meets your needs during an enrollment period.

Next steps: Take our 2-minute Medicare plan quiz, book a free Medicare review, or see our Medicare Advantage vs. Supplement comparison.

We do not offer every plan available in your area. Please contact Medicare.gov or 1-800-MEDICARE to get information on all of your options.