Relating to newborn screening tests for sex chromosome structure.

SB 1392 requires Texas newborn screening programs to include a test for sex chromosome structure variations as part of routine screenings for heritable diseases and newborn health services. This affects all newborns in Texas by adding this specific test to existing screening protocols under the Health and Safety Code. The bill mandates the Department of State Health Services to implement this change after the law takes effect. It does not alter eligibility or create new exemptions - it simply expands the current screening menu to include this test.