Insurance, Health, Accident - As introduced, prohibits a health insurance issuer or managed health insurance issuer from reimbursing for testing services a medical laboratory that is eligible to participate as an in-network participating provider at a rate less than the CMS clinical laboratory fee schedule for medical labs in this state; permits a managed health insurance issuer to require such lab to meet the performance metrics required of in-network labs. - Amends TCA Title 56, Chapter 7, Part 23.

HB 1993 prohibits health insurance issuers and managed health insurance issuers from reimbursing non-network medical laboratories for testing services at rates below the federal CMS clinical laboratory fee schedule in Tennessee. It requires these insurers to pay eligible labs at the CMS rate while allowing them to mandate that non-network labs meet the same performance metrics required of in-network laboratories. This bill directly affects health insurance companies, medical laboratories (particularly non-network providers), and patients who select labs for testing under insurance plans, as it standardizes reimbursement rates and ties lab performance to payment. The policy changes take effect July 1, 2026, and amend Tennessee Code Annotated Title 56, Chapter 7, Part 23.