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What Changes were Made to Illinois Autism Insurance Laws in 2026?

The Illinois autism insurance mandate of 2026 introduced several significant changes to how health insurance plans in the state cover autism-related services. This legislation requires state-regulated health plans to provide comprehensive coverage for Applied Behavior Analysis (ABA) therapy, creating consistent standards across policies.

The key changes include:

  • Expanded Age Limits: Coverage now includes broader age groups, removing previous restrictive caps that excluded many older children.
  • Increased Therapy Hour Caps: Annual limits on therapy hours have been significantly increased. In severe cases, these caps are removed entirely to ensure medical necessity, rather than arbitrary thresholds, determines treatment.
  • Mandated Diagnostic Evaluations: Insurance plans are now required to cover the costs of diagnostic evaluations for autism, reducing out-of-pocket expenses for families during the initial assessment phase.
  • Comprehensive ABA Coverage: The law mandates coverage for essential services including in-depth assessments, personalized 1:1 therapy, and parent training.

It is important to note that while this mandate expands ABA and diagnostic services, it does not include non-ABA services such as speech, occupational, or physical therapy.


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