At Necker/Imagine Institute, Dr. Warehouse integrated with NLP of unstructured narrative reports was demonstrated valuable to make diagnosis of Dravet syndrome earlier (Barco et al., 2021), and to identify 2 undiagnosed patients with a KCNA2 variant in neurodevelopmental syndrome (Hully et al., 2021) based on similarity matching with other patients from the local data warehouse. Here, KCNA2 is linked to encephalopathy, progressive, early-onset, with brain edema and/or leukoencephalopathy.