Diabetes mellitus From Wikipedia, the free encyclopedia Universal blue circle symbol for diabetes.[1] ICD-10 E10.–E14. ICD-9 250 MedlinePlus 001214 eMedicine med/546 emerg/134 MeSH C18.452.394.750 Diabetes mellitus , often referred to simply as diabetes , is a syndrome of disordered metabolism, usually due to a combination of hereditary and environmental causes, resulting in abnormally high bl..