Colonoscopy ACA Coverage: $0 Preventive Mandate, Polyp Loophole, and Braidwood Risk
The $0 colonoscopy promise is real — but it comes with conditions that turn a legal requirement into a practical negotiation. Here’s the actual law, where it falls short, and what you need to know before you schedule.
ACA Section 2713: The Preventive Care Mandate
Section 2713 of the Affordable Care Act requires non-grandfathered group health plans and individual insurance policies to cover preventive services recommended by the USPSTF with a Grade of A or B — with no cost-sharing.
Colorectal cancer screening holds a Grade A recommendation from the USPSTF for adults ages 45–75. The recommendation was updated in May 2021 to include average-risk adults starting at age 45 (previously age 50). That update directly expanded the zero-cost-sharing mandate for tens of millions of insured Americans.
“No cost-sharing” means no deductible, no copay, no coinsurance. Not “less than usual.” Zero. The statute is explicit.
What Plans Must Comply
The mandate applies to:
- ACA marketplace plans (all tiers: bronze, silver, gold, platinum)
- Most employer-sponsored group health plans (unless grandfathered)
- Medicaid expansion plans (in expansion states)
- CHIP plans (for children’s preventive services)
It does not apply to:
- Grandfathered plans: Plans that haven’t made substantial changes since March 23, 2010. These are increasingly rare but still exist.
- Short-term health plans: Explicitly excluded from ACA requirements. Short-term plans can deny preventive care coverage entirely.
- Fixed-indemnity and limited-benefit plans: Not ACA-compliant; no preventive mandate.
- Original Medicare: Uses its own separate statute (Social Security Act) for colonoscopy coverage, not ACA Section 2713.
| Plan Type | ACA Preventive Mandate Applies? | Colonoscopy at $0? |
|---|---|---|
| ACA marketplace plan | Yes | Yes (if properly coded) |
| Employer group plan (non-grandfathered) | Yes | Yes (if properly coded) |
| Grandfathered employer plan | No | Varies by plan |
| Short-term health plan | No | Usually not covered |
| Medicare Part B | No (separate statute) | Yes for screening |
| Medicaid expansion | Generally yes | Generally yes |
The Polyp Loophole: How $0 Becomes $400
ACA Section 2713 requires coverage of the preventive service. When your doctor finds and removes a polyp during a screening colonoscopy, some insurers argue the procedure has become therapeutic — no longer purely preventive — and apply standard cost-sharing to the therapeutic component.
The argument has billing code logic behind it. CPT 45378 (screening) gets supplemented by 45385 (polypectomy). The polypectomy code, in some interpretations, converts the encounter to diagnostic.
This interpretation is being narrowed. The Consolidated Appropriations Act of 2023 phased in protections that reduce cost-sharing for the polypectomy component of a screening colonoscopy. Under this law:
- Beginning with plan years in 2023, cost-sharing for the screening-to-polypectomy conversion must be phased down
- The phase-down continues through 2024 and 2025
Many major insurers — including UnitedHealthcare, Aetna, and most large BCBS affiliates — have voluntarily adopted zero cost-sharing for polyp removal during screening colonoscopy even where not strictly required. Verify your specific insurer’s current policy before your procedure.
How to Confirm Your Plan's Polyp Removal Policy
Call your insurer’s member services line and ask: “If my doctor removes a polyp during my preventive screening colonoscopy, will you apply cost-sharing to the procedure, or will you cover the entire visit at zero cost-sharing under the ACA preventive mandate?”
Document the answer: note the date, representative name, and reference number. If they say cost-sharing will apply, ask: “Has your plan updated its policy based on the Consolidated Appropriations Act of 2023?”
If they still say cost-sharing applies, ask for the written plan document citation. Compare it to your Summary of Benefits and Coverage.
The Braidwood Case: Threat to Preventive Coverage
The most significant legal challenge to ACA Section 2713 is Braidwood Management v. Becerra, a case from the Northern District of Texas. In 2022, Judge Reed O’Connor ruled that the structure of the USPSTF — an independent body whose recommendations trigger insurance coverage mandates without direct congressional oversight — violated the Appointments Clause of the Constitution.
The ruling was stayed pending appeal. As of early 2026:
- The Fifth Circuit Court of Appeals has issued a partial ruling in the case
- The Supreme Court may ultimately decide the constitutional question
- The preventive care mandate remains in effect for most plans pending final resolution
What this means for you right now: your ACA preventive colonoscopy coverage is still legally required. But the legal situation is fluid. If the Supreme Court rules the USPSTF mandate structure unconstitutional, insurers could potentially reinstate cost-sharing for colonoscopy and dozens of other preventive services without violating federal law.
Practically, most large insurers would likely continue covering preventive colonoscopy even if the federal mandate is struck down — it’s good member relations, and many state laws independently require the coverage. But it would no longer be universally guaranteed.
State-Level Protections
Several states have passed laws independently requiring zero cost-sharing for colonoscopy regardless of the federal ACA mandate:
- California
- New York
- Illinois
- Colorado
- Virginia
If you’re in one of these states, state law provides an independent backstop even if federal law changes.
The Practical Checklist for $0 Colonoscopy
- Confirm your plan is ACA-compliant (not grandfathered, not short-term)
- Confirm you’re average-risk with no symptoms (screening indication)
- Verify all providers — facility, GI physician, anesthesiologist — are in-network
- Confirm the procedure will be coded as screening, not diagnostic
- Ask your insurer how they handle a screening-to-polypectomy conversion
- Get everything in writing or documented with a reference number
Do all five and your colonoscopy genuinely costs $0. Skip one and you might be disputing a bill for months.