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Does Medicare cover chiropractic care in Sioux Falls? What the bill doesn't explain in 2026

Medicare pays for exactly one thing at the chiropractor. CMS's own numbers show that gap is where more claims go wrong than almost anywhere else in Part B.

Big Sioux Benefits Data Desk

Published September 6, 2026 · 16 min read · Sourced from CMS.gov

Yes, Medicare covers chiropractic care in 2026, but only one specific service: manual manipulation of the spine to correct a vertebral subluxation, and nothing else a chiropractor typically does in that same visit. That narrow line is exactly where a lot of Sioux Falls Medicare beneficiaries get an unexpected bill. You go in for back pain, the chiropractor examines you, maybe takes an x-ray, and adjusts your spine — and a few weeks later your Medicare Summary Notice shows some of that visit paid and some of it flatly excluded. It isn't a mistake, and in most cases it isn't a denial you can appeal. It's Medicare drawing a line most people never hear about until the bill arrives.

Every figure in this guide comes from a primary source fetched this week: Medicare.gov's own chiropractic coverage page, CMS's 2026 Part A & B premiums and deductibles fact sheet, Noridian Healthcare Solutions (the CMS contractor that processes Part B claims for South Dakota), CMS's 2025 Medicare Fee-for-Service Supplemental Improper Payment Data, an HHS Office of Inspector General portfolio on chiropractic billing vulnerabilities, KFF's 2026 Medicare Advantage Spotlight, and the CMS PY2026 Medicare Advantage plan landscape for Minnehaha County. No numbers from memory.

What Medicare actually covers

Start with the plain rule, straight from Medicare's own coverage page: Part B pays for manual manipulation of the spine by a chiropractor to correct a subluxation — "when the spinal joints fail to move properly, but the contact between the joints remains intact." That's it. Medicare.gov is explicit that it excludes "other services or tests a chiropractor orders, including X-rays, massage therapy, and acupuncture." A licensed chiropractor can legally perform plenty of other things in South Dakota, and many are genuinely useful — Medicare simply doesn't pay for them.

Source: Medicare.gov — Chiropractic Services and Noridian Healthcare Solutions — Chiropractic (Jurisdiction F Part B, covers South Dakota).

Notice what isn't on the "covered" side: acupuncture. Medicare does cover acupuncture in a completely separate, unrelated benefit for chronic low back pain — up to 12 treatments in 90 days, plus 8 more if you're improving, for a maximum of 20 in a 12-month period, per Medicare.gov's own acupuncture coverage page. But Medicare can only pay a doctor, nurse practitioner, or physician assistant who personally holds an accredited acupuncture degree and state license — it can't pay a licensed acupuncturist directly, and a chiropractor ordering or performing acupuncture doesn't open the door to that benefit either. The two rules simply don't connect.

Why the coverage is drawn this narrow

This isn't an oversight or a stingy insurer decision — it's written into how the Medicare statute treats chiropractic care specifically, and Noridian Healthcare Solutions, the Medicare Administrative Contractor that processes Part B claims for South Dakota (Jurisdiction F), spells out the mechanics providers must follow. To bill Medicare at all, a chiropractor has to document a subluxation using the PART system: Pain or tenderness, Asymmetry or misalignment, Range-of-motion abnormality, and Tissue-tone change. At least two of those four findings must be present on exam, and at least one of them has to be asymmetry/misalignment or a range-of-motion problem — pain alone, or tissue tenderness alone, isn't enough.

The claim itself then has to name the exact spinal level involved as the primary diagnosis, and every Medicare claim for active spinal manipulation must carry an AT modifier ("active treatment"). Per Noridian's own billing guidance, a claim without it is treated as maintenance therapy and denied automatically, without a human ever reviewing it — a hard technical gate, not a judgment call made case by case.

The bill that surprises people

Here's how the confusion usually plays out in real life. You go to a Sioux Falls chiropractor for low back or neck pain. In one visit, the office performs a spinal manipulation, takes an x-ray to check alignment, and bills an office-visit exam code alongside it — a completely normal, common way chiropractic offices structure a first appointment. Medicare processes the claim and pays its share of the manipulation only. The x-ray and the exam show up on your Medicare Summary Notice as a separate line, marked as a service Medicare doesn't cover by law, with a note that you may be responsible for the full amount.

That's genuinely different from a denied claim in the sense most people mean it. A true denial usually means Medicare reviewed a covered service and decided it wasn't medically necessary this time — something you can appeal with more documentation. A statutory exclusion means Medicare never covers that service at all, for anyone, regardless of documentation. Reading your Medicare Summary Notice line by line — not just the total — is the only way to tell which one you're looking at, and it's exactly the kind of thing worth a second pair of eyes on.

What it costs you if you get this wrong

The dollar exposure has two separate layers, and it's worth doing the math on both. First, the covered manipulation itself: after the 2026 Part B deductible of $283, you owe 20% coinsurance on the Medicare-approved amount for that service, per CMS's own November 14, 2025 fact sheet on 2026 premiums and deductibles. Your exact coinsurance dollar amount depends on the Medicare-approved rate for that procedure code in your specific location — ask your chiropractor's billing office to quote it, or ask us to help you check it.

Second, and often the bigger surprise: anything statutorily excluded — the x-ray, the exam, the massage add-on — is billed at whatever the provider charges, in full, with no Medicare contribution and no coinsurance cap softening it. A small, genuinely affordable manipulation coinsurance can arrive on the same statement as a separate, much larger bill for the excluded parts — two very different numbers from a single visit.

That 30.4% figure is worth sitting with. It comes from CMS's own Comprehensive Error Rate Testing (CERT) program — the federal government's yearly audit of a sample of Medicare claims — and in the most recent report it names chiropractic as the single highest error-rate service type in all of Part B, ahead of specialist visits, lab tests, and every other category CMS tracks in that table. The chart below sets it against a few other service types from the same report, so the scale is easier to see.

Source: CMS — 2025 Medicare Fee-for-Service Supplemental Improper Payment Data, Appendix D/E (Part B service types).

This isn't a new problem CMS just discovered. An HHS Office of Inspector General portfolio published in February 2018 found that CMS's own error-rate testing put the chiropractic improper-payment rate between 43.9% and 54.1% for the years 2010 through 2015, with estimated overpayments running $257 million to $304 million a year. The rate has come down since then — CMS's more recent work adds stricter documentation requirements like the AT modifier and PART criteria described above — but it's still, by a wide margin, the most error-prone corner of Part B billing. That history is exactly why the documentation rules feel so rigid: they exist because, for over a decade, this specific benefit has been unusually hard for the system to get right.

Maintenance care vs. active treatment

The single biggest reason chiropractic claims go wrong is the line between active treatment and maintenance therapy — and it's a real clinical distinction, not a technicality invented for billing. Active treatment is care Medicare expects to produce measurable improvement in your condition. Maintenance therapy is ongoing care meant to keep you stable or comfortable once further improvement isn't reasonably expected. Medicare pays for the first. It has never paid for the second, at any point in the program's history.

The practical problem: back and neck conditions often genuinely plateau. A patient with chronic arthritis-related stiffness — a real and common issue here, since Minnehaha County's own CDC-tracked adult arthritis rate runs 22.9%, per CDC PLACES 2023 data — may keep seeing a chiropractor for comfort long after "correcting" the subluxation stopped being the honest description of what's happening. That's a completely reasonable personal choice. It's also, per Medicare's own rules, no longer a covered service the moment it crosses into maintenance, whether or not the chiropractor keeps billing the AT modifier.

• Ask directly, every few visits: "Is this still active treatment, or are we maintaining now?" A straight answer protects you from a bill you didn't expect later.
• Watch your Medicare Summary Notice for a pattern change — a string of visits that were covered, followed by ones that suddenly aren't, often marks exactly this transition.
• Remember this isn't about the chiropractor being wrong to keep treating you. Ongoing supportive care can be a legitimate personal choice — Medicare's rule is only about who pays for it, not whether it's worth doing.

The ABN: your chiropractor's warning slip

Providers have a formal tool for exactly this situation: the Advance Beneficiary Notice of Noncoverage, or ABN, form CMS-R-131. When a provider genuinely expects Medicare to deny a specific service — including a shift from active treatment to maintenance care — they're supposed to hand you a written ABN before performing it, so you can decide in advance whether to pay out of pocket rather than finding out after the fact. Per CMS's own ABN page, this is the standard mechanism across all of Medicare, not something specific to chiropractic care.

CMS updated the ABN form for 2026. Per Noridian's own guidance for providers, the revised form became effective March 13, 2026, providers must fully transition to it by May 12, 2026, and it stays valid through March 31, 2029. The update is mostly about plain-language readability, not a change in when providers have to issue one.

Medicare Advantage vs. Original Medicare + Medigap

Every Medicare Advantage plan has to cover at least the same Part B chiropractic benefit Original Medicare does — that's a baseline federal requirement, not a plan-by-plan choice. Where plans differ is in what they add on top. Many Medicare Advantage plans include a supplemental chiropractic benefit with a set number of extra visits a year, sometimes a flat copay instead of 20% coinsurance, and sometimes a specific in-network chiropractor requirement.

Here's the catch worth naming plainly: this benefit isn't standardized or consistently reported the way dental, vision, and hearing are. KFF's own December 2025 analysis of CMS's 2026 Medicare Advantage plan data reports that 98% of individual plans offer some dental benefit, 99% offer vision, 98% offer hearing, and 93% offer a fitness benefit — but that same widely-cited report doesn't publish a comparable chiropractic figure at all. That absence is itself informative: unlike dental or vision, a supplemental chiropractic allowance isn't something the industry tracks as a near-universal benefit, which means you genuinely cannot assume your specific plan has one.

Neither structure "wins" outright for chiropractic care specifically — it depends on how often you actually go, whether you already carry Medigap for other reasons, and what a specific Medicare Advantage plan's supplemental benefit actually offers this year. The only way to know for sure is to read the Summary of Benefits for the plan you're considering, or have someone read it with you.

The Sioux Falls Medicare Advantage roster

Minnehaha County has 11 Medicare Advantage (Part C) plans for 2026, serving 39,532 Medicare beneficiaries, per CMS's own PY2026 plan landscape and county enrollment files. Here are the 5 standard PPOs open to anyone with Medicare in the county — the plans a supplemental chiropractic benefit, if one exists, would attach to.

Source: CMS Medicare Advantage / Part D Landscape (PY2026) & CMS Medicare Advantage & Part D Star Ratings (2026), Minnehaha County, 2026.

None of this roster data tells you which of these five plans adds a supplemental chiropractic visit allowance for 2026 — that level of benefit detail lives in each plan's own Summary of Benefits and Evidence of Coverage, updated annually, not in the CMS landscape file this table is built from. Beyond these five, the county also has Dual-Eligible and Institutional Special Needs Plans and Medica Cost plans; we break the full 15-plan drug-carrying roster down in our all-plans guide.

How to check your own coverage before you go

You can absolutely run this check yourself before your next visit, or before choosing a plan. Here's the method, in order.

1. Ask your chiropractor's office, out loud, before treatment starts: "Which parts of today's visit are Medicare-covered manipulation, and which parts aren't?" A billing office that handles Medicare regularly should answer this without hesitation.
2. Read your Medicare Summary Notice line by line, not just the total — look for the manipulation line separately from any exam, x-ray, or therapy line, and note which ones show a statutory exclusion versus an actual denial.
3. Ask directly whether you're still in "active treatment" if you've been going for a while. If the honest answer is maintenance, expect your coverage to end even if the visits themselves continue.
4. If you're comparing Medicare Advantage plans, pull up the actual Summary of Benefits for chiropractic care — search "chiropractic" in the document rather than assuming it matches your dental or vision benefit.
5. Keep any ABN you're given. If you signed one agreeing to pay for a specific service, that paperwork is exactly what settles a billing dispute later — hang onto it.

How a local advisor helps with this

Everything above is something you can genuinely work through on your own, and plenty of people do. Where a conversation with us tends to help is claims support — reading a confusing Medicare Summary Notice with you, telling you plainly whether a line is a statutory exclusion or something worth appealing, and checking a specific Medicare Advantage plan's chiropractic benefit before you enroll or switch, as part of a broader plan comparison.

Big Sioux Benefits is a licensed independent agency here in Sioux Falls. We don't work for CMS, Medicare, or any single carrier — carriers pay us, not you, so the conversation costs nothing. We do not offer every plan available in your area; any information we provide is limited to those plans we do offer. For a full picture of all your options, Medicare.gov, 1-800-MEDICARE, and South Dakota's free SHIINE counseling program can help too.

You shouldn't have to become a Medicare billing expert to get a chiropractic visit right. That's exactly the kind of narrow, easy-to-miss rule we exist to walk through with someone once, so you don't have to relearn it every time a bill arrives.

What to watch for in 2026 and 2027

1. The new ABN form's full rollout — by May 12, 2026, every provider issuing one, including chiropractors, must be using the updated CMS-R-131.
2. Your Medicare Advantage plan's Annual Notice of Change each September — a supplemental chiropractic allowance can shrink or disappear year to year just like a dental or fitness benefit; we cover reading that letter in full in our 2027 ANOC guide.
3. Whether CMS publishes an updated CERT error rate for chiropractic services in its next annual improper-payment report — a rising or falling rate signals whether documentation rules are tightening further.
4. Any Medicare Advantage benefit changes for 2027 during this fall's Annual Enrollment Period (October 15–December 7, 2026) — re-check the chiropractic line in the Summary of Benefits, not just the headline premium.
5. Your own pattern of visits — if you've been going to the same chiropractor for months, it's worth asking directly whether you're still in active treatment before assuming coverage continues unchanged.

How we know all this: Big Sioux Benefits runs every article through a data desk that cross-references Medicare.gov's own coverage rules, CMS's fact sheets and CERT improper-payment data, Noridian Healthcare Solutions' published billing guidance for South Dakota providers, an HHS Office of Inspector General portfolio, KFF's independent analysis of Medicare Advantage benefits, and the CMS PY2026 Medicare Advantage plan landscape for Minnehaha County — built by Strategic AI Architects. Every figure on this page was fetched from its primary source on September 6, 2026 and carries the period it covers. This is education, not medical or legal advice; confirm your own coverage and billing questions with Medicare.gov, your plan, or a licensed agent. We take no payment from any carrier to feature a plan.