Monarch Disease Ontology identifier MONDO_0016837 (16p13.11 microduplication syndrome) is a recently described syndrome associated with variable clinical features including behavioral abnormalities, developmental delay, congenital heart defects and skeletal anomalies. Also known as: 16p13.11 recurrent microduplication (neurocognitive disorder susceptibility locus), dup(16)(p13.11), trisomy 16p13.11.