Relating to the designation of controlled substance overdose for purposes of the death certificate.

HB 2845 requires medical examiners in Texas to specify "Fentanyl Poisoning" or "Fentanyl Toxicity" on death certificates when fentanyl (Penalty Group 1-B) is found in lethal amounts with autopsy evidence of opioid overdose. For other controlled substances, it mandates "Controlled Substance Overdose" plus the specific drug type if identifiable. This change applies to deaths occurring on or after September 1, 2025, affecting medical examiners who complete death certificates. The bill standardizes documentation for overdose-related deaths without altering drug policies or public health responses.