Abdominal Aortic Aneurysm (AAA) Screening

Preventive Care

AAA risk is higher in older men, especially with a history of smoking. Screening can detect an aneurysm before it becomes dangerous.

If you’ve ever smoked, ask if you meet screening criteria.
Manage blood pressure and quit tobacco.
Know urgent warning signs: sudden severe belly/back pain, dizziness, fainting.

Medicare Coverage

Medicare Part B covers a one-time AAA screening ultrasound if you’re at risk.

You pay nothing if the provider accepts assignment and Medicare rules are met.
Follow-up imaging after findings/symptoms may be billed as diagnostic.

Key takeaways

One-time, risk-based benefit.
Smoking history is a major eligibility driver.
Screening vs diagnostic matters after abnormal findings.

Good to Know

Provider Accepts Assignment

In Original Medicare, “accepts assignment” means a provider agrees to Medicare’s approved amount as full payment (with you paying any required deductible/coinsurance). For many preventive services, using a provider who accepts assignment can help keep your costs lower and more predictable.

Frequency Limits

Many Medicare preventive services have frequency limits, meaning Medicare covers them only as often as allowed (for example, once every 12 months, once every five years, or once in your lifetime). The schedule varies by service.

Eligibility Rules

Many preventive services are covered only if you meet Medicare’s eligibility rules. These rules can include your age, risk factors, medical history, lab results, diagnoses, or timing (for example, being “at risk” for a screening).

Observation vs Inpatient can change costs and next steps

A hospital stay can be billed as inpatient or outpatient/observation, and the difference can affect both costs and post-hospital benefits. Observation can look like an admission (same room, same care), but it’s often billed under Part B rather than Part A. If rehab after the hospital is likely, your status can also affect what follow-up care Medicare may help with.