Heat deaths could get a clearer count

For patients and families, a heat death can vanish into paperwork almost as easily as it can disappear from the news cycle. In Washington, the Heat Emergency Assessment and Tracking using AI Act, or HEAT AI Act, would direct the Department of Health and Human Services, or HHS, to study heat-related illness and death within two years and start a small pilot aimed at finding missed cases faster.

The bill says the count is off now because of limits in International Classification of Diseases, or ICD, coding and because medical practitioners do not always document heat the same way. It points to artificial intelligence, including large language models, as a tool that could read unstructured clinical notes alongside local weather data and surface cases the current system misses.

When heat hides in the record

The study would not stop at a national total. It would coordinate with state departments of health and vital statistics offices to sort how many deaths may be tied to heat as a primary, secondary or tertiary cause of death.

That matters because a death can be linked to heat without being labeled that way on the first pass. If the paperwork is thin or inconsistent, the scale of the problem stays blurry, and the people making local decisions are working from an incomplete picture.

A pilot built around the blind spots

The bill would also create the Heat Illness AI Surveillance and Response Program and have HHS make grants to no fewer than 3 and no more than 5 eligible entities. The goal is to test whether AI-assisted surveillance can help spot heat illness sooner and support faster response when dangerous temperatures send people into care.

The pilot is small, but the intended audience is broad: public health departments, state vital statistics offices, health systems and medical practitioners. If the system can catch more of what is already happening, the first real change would be simpler and more practical than any slogan, a clearer count of heat’s toll.