| Law requiring no-cost coverage | Affordable Care Act (ACA), Section 2713 (Centers for Medicare and Medicaid Services) |
| Plans typically covered | Most private and employer-sponsored non-grandfathered plans (HealthCare.gov) |
| Body that grades adult screenings | U.S. Preventive Services Task Force (USPSTF) (USPSTF, current guidelines) |
| Body that sets vaccine schedules | Advisory Committee on Immunization Practices (ACIP) (CDC) |
| Body governing pediatric coverage | Health Resources and Services Administration (HRSA) Bright Futures (HRSA) |
| Plans exempt from the requirement | Grandfathered plans (pre-March 23, 2010, with no major changes) (CMS) |
What the law requires insurers to cover
The Affordable Care Act (ACA) requires most private health plans to cover a set of preventive services without charging a copay, coinsurance, or deductible, even if you have not met your annual deductible. This applies to plans purchased through the Health Insurance Marketplace, most employer-sponsored plans, and Medicaid expansion coverage. Grandfathered plans, which are plans that existed before March 23, 2010 and have not made significant changes since, are exempt.
The covered services are drawn from recommendations by three federal bodies: the U.S. Preventive Services Task Force (USPSTF), the Advisory Committee on Immunization Practices (ACIP), and the Health Resources and Services Administration (HRSA). When any of these bodies issues an A or B grade recommendation, insurers must cover that service at no cost to the patient.
For a plain-language explanation of how coverage categories work, see what preventive care actually covers.
| Law requiring no-cost coverage | Affordable Care Act (ACA), Section 2713 (Centers for Medicare and Medicaid Services) |
| Plans typically covered | Most private and employer-sponsored non-grandfathered plans (HealthCare.gov) |
| Body that grades adult screenings | U.S. Preventive Services Task Force (USPSTF) (USPSTF, current guidelines) |
| Body that sets vaccine schedules | Advisory Committee on Immunization Practices (ACIP) (CDC) |
| Body governing pediatric coverage | Health Resources and Services Administration (HRSA) Bright Futures (HRSA) |
| Plans exempt from the requirement | Grandfathered plans (pre-March 23, 2010, with no major changes) (CMS) |
Services covered for adults
For adults, no-cost preventive coverage includes blood pressure screening, cholesterol checks, colorectal cancer screening (colonoscopy, stool tests), diabetes screening for adults with elevated blood pressure, and depression screening. Lung cancer screening with low-dose CT is covered for adults aged 50 to 80 who have a significant smoking history.
Tobacco cessation counseling, weight-loss counseling for adults with obesity, and alcohol misuse screening are also included. Women receive additional coverage under HRSA guidelines, including well-woman visits, gestational diabetes screening, breastfeeding support, and all FDA-approved contraceptive methods without cost sharing.
Preventive care addresses conditions before they become expensive to treat. For context on how this differs from care you seek after symptoms appear, see how preventive and reactive care compare.
Services covered for children
HRSA's Bright Futures guidelines govern pediatric preventive coverage. Well-child visits at scheduled intervals from birth through age 21 are covered, along with vision and hearing screening, developmental and autism screening, and lead screening for children at risk. Obesity screening and counseling are included for children and adolescents.
Vaccines on the ACIP childhood immunization schedule, such as those for measles, mumps, rubella, varicella, hepatitis B, and HPV, are covered without cost sharing. Coverage applies as long as the vaccine is on the ACIP schedule and administered by an in-network provider.
For a full breakdown of recommended checkups by age, see pediatric preventive care checkups and timing. You can also build these visits into a broader household plan using the annual preventive health checklist.
When a visit is billed as diagnostic instead of preventive
A common billing problem occurs when a routine preventive visit becomes diagnostic during the appointment. If a doctor identifies a new symptom or condition and orders additional tests, the visit may be reclassified as a diagnostic encounter, which can trigger cost sharing. For example, if you go in for a routine colonoscopy and a polyp is found and removed, some plans bill the removal separately as a diagnostic procedure.
Before any appointment, ask your provider's billing department whether the visit will be coded as preventive. If a separate issue comes up during the visit, ask whether it should be handled at a follow-up appointment to preserve the preventive coding. Reviewing your Explanation of Benefits (EOB) after each visit lets you spot reclassifications and dispute them if the original intent was preventive.
This article provides general information about insurance coverage under federal law and is not a substitute for personalized advice from a licensed insurance professional or your plan administrator. Coverage details vary by plan; always confirm with your insurer before a scheduled service.
