Objective To examine a 2018 rule change allowing pediatric providers to bill the child's Medicaid ID for post-partum depression (PPD) screening of mothers conducted during well-child visits, and document its relationship with PPD treatment and infant hospitalizations. Study setting and design...

We examine differences in the prescribing of psychiatric medications to low-income and higher-income children in the Canadian province of Ontario using rich administrative data that includes diagnosis codes and physician identifiers. Our most striking finding is that conditional on diagnosis and...