Any transient neonatal diabetes mellitus in which the cause of the disease is a mutation in the ABCC8 gene. The disease is MONDO_0012480 (diabetes mellitus, transient neonatal, 2). Also known as: ABCC8 transient neonatal diabetes mellitus (disease), diabetes mellitus, transient neonatal 2, diabetes mellitus, transient neonatal, type 2, transient neonatal diabetes mellitus (disease) caused by mutation in ABCC8.