Type 1 diabetes mellitus Includes:brittle diabetes (mellitus)diabetes (mellitus) due to autoimmune processdiabetes (mellitus) due to immune mediated pancreatic islet beta-cell destructionidiopathic diabetes (mellitus)juvenile onset diabetes (mellitus)ketosis-prone diabetes (mellitus)Excludes1diabetes mellitus due to underlying condition (E08.-)drug or chemical induced diabetes mellitus (E09.-)gestational diabetes (O24.4-)hyperglycemia NOS (R73.9)neonatal diabetes mellitus (P70.2)postpancreatectomy diabetes mellitus (E13.-)postprocedural diabetes mellitus (E13.-)secondary diabetes mellitus NEC (E13.-)type 2 diabetes mellitus (E11.-)