Prenatal Ultrasounds Are Not All Medically Necessary — What Your ACA Plan Will (and Won't) Cover

Congratulations on getting pregnant and building your family! This is one of the most exciting times of your life, and naturally you want to check on the new baby in the womb and make sure everything is going well with the health of your baby. You will be presented with the opportunity to get an ultrasound in the first few weeks of pregnancy. Some of these scans can be used for genetic testing — to see the gender of the child or to check whether the baby has Down syndrome and other chromosomal conditions. But here is the catch that catches many new parents off guard: under Affordable Care Act (ACA) health plans, not every ultrasound is considered medically necessary, and if a scan is not medically necessary you can be held responsible for paying the full bill out of pocket.

Let's start with what the ACA actually requires. The Affordable Care Act mandates that all qualified health plans cover a set of preventive services for pregnant women at no cost to you — meaning no copay, no coinsurance, and no deductible — as long as the service is delivered by an in-network provider. This includes routine prenatal visits, certain screening tests, folic acid supplements, gestational diabetes screening, hepatitis B screening, Rh incompatibility screening, syphilis screening, and tobacco-use counseling. You can view the full official list of what's covered as preventive and wellness care under an ACA plan at healthcare.gov/coverage/preventive-care-benefits (https://www.healthcare.gov/coverage/preventive-care-benefits/). The key word is preventive and medically necessary. When your doctor orders an ultrasound because there is a clinical reason — confirming the pregnancy, checking fetal growth, verifying the heartbeat, ruling out an ectopic pregnancy, or monitoring a known complication — that scan is generally covered as part of your prenatal care. That is the good news, and it is exactly what insurance is designed to protect.

Now the part that trips people up. Not every ultrasound you are offered falls into the 'medically necessary' bucket. Elective or non-diagnostic scans — including early gender-reveal ultrasounds, keepsake 3D/4D imaging at private boutique studios, and some forms of non-invasive prenatal genetic screening (NIPT) ordered without a qualifying medical reason — may not be covered by your ACA plan. If your plan classifies the scan as elective or not medically necessary, the preventive-cost-sharing protection does not apply, and you become responsible for the full charge. Ultrasound facility fees can range anywhere from $200 to over $1,000 per scan depending on the type and facility, so an unexpected bill here can be a real shock.

Here is a critical distinction that many parents miss: there is a difference between a diagnostic ultrasound and a screening ultrasound, and there is a difference between a standard anatomy scan and an elective keepsake scan. A diagnostic ultrasound is ordered because your provider needs clinical information — for example, to measure the baby, check the placenta, or investigate a concern. A standard anatomy scan (usually performed around 18–22 weeks) is a medically necessary, covered screening. A keepsake or gender-reveal ultrasound at a private boutique — where the only purpose is to get a photo or find out the sex early — is not medically necessary and is almost never covered. Non-invasive prenatal testing (NIPT) for chromosomal conditions like Down syndrome is increasingly common and can be covered when there is a qualifying medical reason (such as maternal age, abnormal screening results, or family history), but when it is ordered purely electively for peace of mind with no risk factors, some plans will deny it and bill you.

So what should you do? The single most important step is to clarify coverage with your medical provider and your insurance company before your prenatal visit — not after. Here is exactly what to ask. First, ask your doctor or midwife: 'Is this ultrasound medically necessary, and what is the clinical reason for ordering it? Will you document that reason in the order?' Second, ask the billing or coding department of the imaging facility: 'How will this ultrasound be billed — as diagnostic, screening, or elective? What CPT code will be used?' Third, call the member services number on the back of your insurance card and ask: 'Is this specific procedure code covered under my plan when ordered for this reason? Is it considered preventive, and will I owe any cost-sharing? Is pre-authorization required?'

Get it in writing whenever possible. When the insurance company tells you over the phone that a service will be covered, ask for a reference number for the call, note the date, the representative's name, and exactly what they said. Even better, ask whether they can send a written confirmation or a pre-authorization approval. A documented verbal confirmation is not a guarantee of payment — insurers can still deny claims later — but it gives you powerful leverage to appeal a surprise bill. If the insurer says the scan is not covered or is elective, you then have the choice to decline it, ask your provider to order a covered alternative, or proceed knowing you will pay out of pocket. The goal is never to be surprised after the fact.

Here are a few more gaps worth knowing. First, in-network versus out-of-network matters enormously — an ultrasound performed at an out-of-network imaging center, even if medically necessary, can leave you with a large bill, so confirm the facility is in your plan's network before scheduling. Second, if your pregnancy is considered high-risk, additional ultrasounds are more likely to be deemed medically necessary and covered, but the documentation in your medical record is what proves it — make sure your provider notes the clinical indication. Third, if you receive a surprise bill from an out-of-network provider who worked at an in-network facility (for example, the radiologist who reads your scan), you have rights under the No Surprises Act to dispute it — request a good-faith estimate and file an appeal. Fourth, some plans require pre-authorization for advanced imaging like NIPT or detailed anatomy scans; skipping this step is a common reason claims get denied.

Finally, a word on timing. The standard prenatal ultrasound schedule typically includes a dating scan in the first trimester (around 8–12 weeks) to confirm gestational age and viability, and a detailed anatomy scan around 18–22 weeks to check the baby's organs and growth. Additional scans are added only when medically indicated. If you are offered extra scans beyond this schedule, ask why — and whether your insurance will cover the reason given. Elective early gender determination (often available as early as 10 weeks via NIPT or 14–16 weeks via ultrasound) is a popular request, but it is exactly the kind of service that may be billed to you, so confirm before you consent.

The bottom line: prenatal ultrasounds are a wonderful and important part of monitoring your baby's health, but not every scan your provider offers is automatically covered by your ACA plan. The difference between a covered, medically necessary scan and an elective one you pay for out of pocket comes down to the clinical reason, the billing code, and your plan's rules. Clarify with your medical provider and your insurance company before the visit, ask the right questions, and get the answer in writing whenever you can. As an independent licensed insurance broker serving families in 28 states — and connecting customers in all 50 to trusted coverage — I help expectant parents understand exactly what their health plan covers before the bills arrive. Call me at (407) 815-0820 or book a free consultation below, and I'll help you review your maternity coverage so you can focus on your growing family instead of surprise bills.