The retrospective review by Lynn et al.1 sought to investigate mortality in homeless individuals in Ireland during 2019. This was a feasibility study aimed at developing a greater understanding of premature mortality among the homeless using the National Drug-Related Death Index (NDRDI), an epidemiological database. The study was commissioned by the Department of Health and sought to provide more complete and accurate data to help inform policy. It is the first Irish study to examine the number and causes of homeless deaths nationally.