Type 1 Diabetes Mellitus
Type 1 Diabetes Mellitus is indexed under Metabolic & Endocrine, Diabetes. Also known as T1D, T1DM, juvenile diabetes, insulin-dependent diabetes.
- US prevalence
- ~2.1 million people with diagnosed type 1 diabetes in the United States in 2023, including ~1.8 million adults age 20+ and ~314,000 people under 20 Source: CDC National Diabetes Statistics Report 2026. Federal source. Label: VERIFIED.
- ICD-10-CM codes
- E10, E10.9, E10.65
- Typical onset
- Bimodal peaks: 4-7 years and 10-14 years; can occur at any age
- Course
- lifelong
- Body systems
- endocrine, cardiovascular, renal, neurological, ophthalmologic
- Sex differences
- Roughly equal in children; slight male predominance in adults
- Racial and ethnic differences
- Highest in non-Hispanic white populations
What this page does not establish
These figures describe populations, not individuals, and none of them is a diagnosis or a treatment recommendation. Prevalence estimates are approximate and reflect published ranges. Disparity figures are reported patterns, not causes.
Taxonomy last reviewed 2026-05-19. Each figure on the interactive page carries its own source and retrieval date, which can be later than this review.
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