Diabetes Mellitus, Type 1

**Definition:** A subtype of DIABETES MELLITUS that is characterized by INSULIN deficiency. It is manifested by the sudden onset of severe HYPERGLYCEMIA, rapid progression to DIABETIC KETOACIDOSIS, and DEATH unless treated with insulin. The disease may occur at any age, but is most common in childhood or adolescence.

**Tree numbers:** - C18.452.394.750.124 - C19.246.267 - C20.111.327

**Synonyms:** - Type 1 Diabetes - Diabetes Mellitus, Insulin-Dependent - Diabetes Mellitus, Juvenile-Onset - IDDM - Diabetes Mellitus, Type I - Diabetes Mellitus, Sudden-Onset - Type 1 Diabetes Mellitus - Diabetes Mellitus, Insulin-Dependent, 1 - Insulin-Dependent Diabetes Mellitus 1 - Juvenile-Onset Diabetes