Health Care - As enacted, prohibits certain healthcare providers from knowingly or willfully asking a minor, or a health insurance issuer, managed care organization, or entity providing reimbursement for healthcare services from requiring or requesting a healthcare provider or facility to ask, certain gender-related questions for any purpose; makes other related changes. - Amends TCA Title 4; Title 33; Title 47; Title 56; Title 63; Title 68 and Title 71.

HB 1665 prohibits healthcare providers in Tennessee from asking minors specific gender-related questions (such as whether a minor feels normal in their body or identifies as a different gender) without a parent being physically present, fully informed, and providing written consent. The bill applies to all healthcare settings covered under Tennessee law and requires such questions to be directly related to a minor's current medical or psychological treatment. Exceptions include emergency care, mandated reporting for abuse, and situations where a minor is emancipated or a parent themselves. The legislation also bars insurance companies from requiring these questions for payment or penalizing providers who don't ask them. It amends multiple Tennessee code sections (Titles 4, 33, 47, 56, 63, 68, 71) to enforce these requirements.