Seven patients had NDM and it was molecularly confirmed in 6 of 7 patients in whom KCNJ11 (n=2), 6q24 (n=1), EIF2AK3 (n=1), SLC19A2 (n=1) and PTF1A enhancer (n=1) gene mutations were identified. This evidence concerns the gene KCNJ11 and neonatal diabetes mellitus.