Specifies, in GS 1-15, that a cause of action arising out of the performance of or failure to perform services while in the course of facilitating or perpetuating gender transition (defined) will be commenced either within 25 years from the day the claimant reaches 18 years of age or four years from discovery of both the injury and the causal relationship between the treatment and the injury, whichever is later. Prevents a medical professional or entity from seeking a contractual waiver of liability for causes of action arising out of the performance of or failure to perform services while facilitating or perpetuating gender transition. Specifies that the liability limit for noneconomic damages in GS 90-21.19 does not apply to damages arising under those causes of action. Applies to causes of action accruing on or after the act becomes law.