Downcoding is what happens when an insurer pays a claim at a lower-intensity code than the one billed, without asking why. It's been a manual reviewer's judgment call for decades. Now it's increasingly a software judgment call, made in bulk, with no clinician reading the note.
What Does Illinois' Transparency in Downcoding Act Actually Require?
Illinois' SB3114 passed unanimously in the Senate and 111-0 in the House, then became law as the state's first statute directly targeting algorithmic downcoding (Illinois State Medical Society, May 28, 2026). It bans insurers from downcoding based on diagnosis code alone, bans letting an automated tool make the call without a person reviewing it, and requires the insurer to tell you the original code, the revised code, and the payment difference.
There's a 90-day dispute window built in, and the law specifically prohibits insurers from downcoding physicians who treat complex or chronic patients more aggressively than others (Illinois State Medical Society, May 28, 2026). Governor Pritzker signed it into law around mid-July 2026, and it's now Public Act 104-0568 (WAND-TV, 2026).
Here's the part the press releases bury. The effective date on the bill text is January 1, 2028 (Illinois General Assembly, SB3114 bill status). Illinois wrote the rule down. The SYSTEM gets an 18-month runway before anyone has to follow it.
Is This Already Happening, or Is It Still Theoretical?
Already happening. Maryland's insurance regulator fined Cigna $80,000 in early 2026 and ordered it to stop automatically downcoding a set of E/M claim codes it had been running through an internal algorithm since October 2025 (Becker's Payer Issues, 2026).
Cigna's policy, internally labeled R49, auto-reduced billing codes 99204-99205, 99214-99215, and 99244-99245 by one level, no formal dispute process, no documentation request, just a downgrade applied at scale (American Dental Association News, April 2026). Maryland's regulator ordered Cigna to reprocess every affected claim going back to October 1, 2025.
To be fair to the timeline: Cigna had already paused the R49 policy nationally, following pushback from medical specialty societies, before Maryland's fine landed (American Academy of Sleep Medicine, 2025-2026). Paused, not rescinded. And it took organized specialty-society pressure to get even that. A solo therapist in private practice doesn't have a specialty society lobbying on their behalf when the algorithm flags their note.
Does This Apply to Psychotherapy Codes Like 90837?
Nothing confirmed says it does, and nothing says it doesn't. The verified laws (Illinois' Act, Maryland's Cigna order, Connecticut's bill) all name evaluation-and-management codes: the 992xx series billed by physicians for office visits. None of the public record ties any of these actions to the 90832, 90834, or 90837 psychotherapy codes clinicians actually bill.
That matters, because it means you can't point to Illinois or Maryland and say "this proves insurers are auto-downcoding my 90837s." Nobody has proven that yet, one way or the other. What's fair to say is narrower: nothing in these laws exempts psychotherapy codes, and there's no reason to assume an insurer that built downcoding software for E/M claims stops there. The well-known pattern of 90837 getting bumped to 90834 has historically been traced to missing session-length documentation on the clinician's side, a different mechanism than an insurer-side algorithm flagging claims in bulk. Whether the two are converging is an open question, not a settled one.
Which Other States Are Moving on This?
Connecticut is the closest follower, and it hasn't crossed the finish line. SB 342 would bar a health carrier from using a software tool to downcode or deny a claim unless a documented clinical peer review backs it up. It passed the Connecticut Senate 34-1-1 on May 6, 2026, and reached the House calendar the same day (LegiScan, CT SB00342).
No governor's signature has been confirmed, and the 2026 session record shows "Adjourned Sine Die." Industry opposition, led by the Connecticut Business and Industry Association, estimated the bill would cost insurers $113 to $125 million a year if enacted, which tells you roughly how much money is riding on keeping the algorithm running unsupervised. Say it accurately: Connecticut lawmakers passed a downcoding bill through the Senate. Nobody has signed it into law yet.
Beyond Illinois, Maryland, and Connecticut, no other confirmed state action exists as of this writing. Momentum, not a wave.
What Should a Tri-State Therapist Do About This Right Now?
Nothing here changes your billing obligations today, and that's exactly the problem worth sitting with. The 2028 effective date means the transparency requirements, the human-review mandate, the 90-day dispute window, none of it is enforceable in Illinois yet, and it never applied to New York, New Jersey, or Connecticut practices in the first place.
What you can do now: keep session-length and medical-necessity documentation airtight on every 90837 claim, the same habit that already protects you against manual downcoding (Beyond 90837: 5 Therapy CPT Codes, Zero Prior Auth). When an EOB shows a paid code that doesn't match what you billed, treat it as a documented event, not a shrug. Note the date, the original code, the paid code, and call it in writing. If you're building the appeal file for a downcoded claim, the same muscle applies as any denial fight (Appeal a Mental Health Claim Denial and Win).
A clean, timestamped note also does something quieter: it removes the ambiguity an algorithm exploits. VibeCheck.luxury's session notes timestamp automatically and store the clinical detail that supports the code you billed, so if a payer ever questions it, you're not reconstructing your own file from memory three months later.
Why Does It Take Until 2028 for the Law to Bite?
Because that's how long insurers said they needed, and lawmakers gave it to them. An 18-month runway between signature and enforcement is standard for regulatory changes that require insurers to rebuild claims-processing systems, but it also means the exact insurers named in this law have until 2028 to keep running the tooling exactly as built. Illinois didn't ban the algorithm. It banned the algorithm working alone, starting in 2028.
That gap is where commercial insurers, not government payers, sit with the leverage. Cigna, and any insurer running similar E/M downcoding logic, gets roughly two years to decide how much of that automated review to keep, adjust, or quietly extend into other claim types before anyone can force a human into the loop. The parity fights already underway against Aetna, Cigna, and UnitedHealthcare over how little they pay behavioral-health clinicians (Why Commercial Insurers Pay Therapists So Little) run on the same clock: the fine lands, the insurer appeals or pauses quietly, and the underlying system keeps operating.
FAQ
Is Illinois' downcoding law in effect right now?
No. Illinois signed the Transparency in Downcoding Act in mid-July 2026, but its effective date is January 1, 2028 (Illinois General Assembly, SB3114). Insurers aren't required to follow it until then.
Did an insurer actually get caught auto-downcoding claims?
Yes. Maryland's insurance regulator fined Cigna $80,000 in 2026 and ordered it to stop automatically downcoding a set of E/M codes it had run through an internal algorithm since October 2025, and to reprocess the affected claims (Becker's Payer Issues, 2026).
Does this apply to therapy codes like 90837?
Not confirmed. Every verified law or enforcement action so far, Illinois, Maryland, Connecticut, targets E/M physician-visit codes, not the 90832/90834/90837 psychotherapy series. There's no confirmed case of an insurer auto-downcoding psychotherapy claims, and no confirmed exemption either.
Is Connecticut's downcoding bill law yet?
No. SB 342 passed the Connecticut Senate 34-1-1 in May 2026 and reached the House calendar, but no governor's signature has been confirmed as of this writing (LegiScan, CT SB00342).
What should I do if my EOB shows a lower-paid code than what I billed?
Document the date, the code you billed, and the code paid, then request the payer's stated reason in writing. Build your appeal from that reason rather than guessing, the same approach that works for any claim denial (Appeal a Mental Health Claim Denial and Win).