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Bill

SB 175

INS CD-KLINEFELTER SYNDROME

104th Regular Session Introduced by Kelly Cassidy and 2 co-sponsors

Illinois mandates insurers cover Klinefelter syndrome testing and treatment without cost-sharing, effective January 2026.

Public Act . . . . . . . . . 104-0073
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Bill Summary · SB 175

Legislative bill overview

SB 175 requires Illinois health insurance plans to cover genetic testing and treatment for Klinefelter syndrome, a chromosomal condition affecting males. The bill mandates coverage without cost-sharing (copays, coinsurance, deductibles) for diagnostic testing, genetic counseling, and medically necessary treatments related to the condition.

Why is this important

Klinefelter syndrome affects an estimated 1 in 500 to 1,000 male births but often goes undiagnosed due to variable symptoms and limited awareness. By requiring insurance coverage, the bill aims to improve early detection and treatment access, potentially reducing long-term health complications including infertility, bone density issues, and metabolic disorders. This expands healthcare equity for individuals with this underrecognized genetic condition.

Potential points of contention

  • Insurance cost impact: Mandating comprehensive coverage without cost-sharing increases premiums for all policyholders, which some argue shifts costs to those without the condition
  • Definition scope: The bill's coverage parameters for "medically necessary treatment" could be ambiguous, potentially leading to coverage disputes and inconsistent implementation
  • Precedent concerns: Condition-specific insurance mandates raise questions about whether similar requirements should apply to other genetic or rare diseases, potentially expanding regulatory burden

Compiled from official sources — confirm details with the bill’s official record.

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