Illinois: Sweeping Reform That Changed the Conversation

Most state prior authorization reforms cut timelines, add transparency requirements around an existing process, or gold card providers throughout a certain evaluation period. Illinois, however, has taken a unique approach, addressing fundamentals. Across two laws passed since 2020, Illinois has created outright prior authorization bans for certain categories of care, choosing to eliminate authorizations in specific care settings rather than attempt to speed the process up. That distinction is what makes Illinois one of the more consequential state prior authorization stories of the last five years.

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The Foundational Reform (HB 711)

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The Prior Authorization Reform Act, effective January 1, 2022, set the timelines, transparency requirements, and enforcement measures that have since become a standard for prior authorization reform across the country. On its own, HB 711 would place Illinois alongside a dozen other states that passed comparable baseline reforms during the same period. However, this bill serves as a foundation for what Illinois has done since, and allowed them to move forward with more revolutionary changes – which is what came next.

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Banning Prior Authorization Outright (HB 5395)

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The Healthcare Protection Act, with key provisions effective January 1, 2026, changed the conversation, taking Illinois from a standard state to one with real operational impacts in progress. It outright eliminates prior authorization requirements for inpatient mental-health treatment – extending to both adults and children – at participating hospitals, and for step therapy across state-regulated plans, Medicaid, and the state group health plan.

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This type of reform exists on an entirely different plane than timeline tightening or AI-governance. Behavioral-health providers in Illinois are  not just having a turnaround time burden lifted, but rather, are having the entire burden removed altogether. The administrative function disappears from start to finish for that population, completely eliminating the lift rather than easing it.

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And they didn’t stop there. Step therapy, the requirement that a patient try and fail a lower-cost treatment before a plan will cover a physician's first-choice option, is a persistent source of delay and administrative burden across nearly every state's prior authorization framework. Setting the precedent for many other states who have since followed in their footsteps, Illinois removed the whole step-therapy burden of authorization across state-regulated plans, Medicaid, and the state group health plan simultaneously.

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What This Means Operationally

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For behavioral-health providers operating in Illinois, HB 5395 creates a huge lift for an entire category of care. Authorization teams that have built processes specifically around mental health and behavioral health will be able to reallocate staff capacity elsewhere as the ban takes effect.

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The step-therapy ban has a broader reach across the organization, touching any provider whose patients are enrolled in state-regulated plans, Medicaid, or the state group health plan and who has historically had to document a failed lower-cost treatment before prescribing a first-choice option. That documentation burden disappears for those plan types, though providers should confirm exactly which plans fall under state-regulated coverage.

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Organizations operating across multiple states should also watch Illinois as a trend signal rather than an isolated policy choice. A full category ban, rather than a timeline adjustment, is a more aggressive legislative tool, and if the approach proves sound in Illinois, it's a model other states with active behavioral-health access concerns may look to emulate.

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Why Illinois Is Worth Watching

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Most of the states in active reform processes are building the foundational mechanisms: how fast must a plan respond, what has to be disclosed, who qualifies for an exemption. Illinois went off this beaten path, asking whether prior authorization needs to apply to a given category of care at all, and answering no for two of them.

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This puts Illinois in a small group of states, alongside Rhode Island's PCP-ordered care pilot, testing outright elimination rather than incremental, broad stroke reform. Whether other states follow with their own category-specific bans, particularly for behavioral health, is an open question highly dependent on how Illinois, Rhode Island, and other states’ toe-dipping into the reform type works out. 

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Bill numbers, effective dates, and provisions reflect available public reporting as of this writing. Confirm current requirements against the Illinois Department of Insurance or Illinois General Assembly before making operational decisions.

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