Anpheros Search · Condition

Type 1 diabetes

Also known as: Type 1 diabetes mellitus

General information only. Anpheros does not diagnose and does not recommend treatment. Talk to a doctor or pharmacist about your situation. In an emergency, call 112 (or your local emergency number).

In short

Type 1 diabetes is an autoimmune disease where the body makes little or no insulin, causing blood glucose to become too high. The condition often begins in children and young adults, and symptoms can include feeling very thirsty, feeling very hungry, urinating more often, fatigue, blurry vision, and losing weight without trying. Without daily insulin through injections or an insulin pump, too much glucose stays in the blood, which can lead to diabetic ketoacidosis or long-term problems with the heart, eyes, kidneys, nerves, gums, and teeth.

Source: MedlinePlus, National Library of Medicine.

AI-generated summary of the sources cited on this page, checked automatically against them. Not reviewed by a clinician; not medical advice.

Codes

ICD-10: E10
ICD-11: 5A10 Type 1 diabetes mellitus

Description

What is type 1 diabetes?
Diabetes means your blood glucose, also called blood sugar, is too high. With type 1 diabetes, your body makes little or no insulin. Insulin is a hormone from your pancreas that helps glucose move from your body into your cells, where it is used for energy. Your body can make glucose, but it also comes from the food you eat. Without insulin, too much glucose stays in your blood.
Over time, high blood glucose can lead to serious problems with your heart, eyes, kidneys, nerves, gums, and teeth.
If your blood glucose gets very high, you can develop diabetic ketoacidosis (DKA). It happens when your body doesn't have enough insulin to allow glucose into your cells. Instead, your liver breaks down fat for energy, which produces ketones. When ketones build up too quickly, they can reach dangerous levels. DKA is a life-threatening emergency.
What causes type 1 diabetes?
Type 1 diabetes is an autoimmune disease. Your immune system mistakenly attacks the cells in your pancreas that make insulin. Researchers don't yet know exactly why this happens. Genes and environmental factors may play a role in triggering the disease.
Who is more likely to develop type 1 diabetes?
Type 1 diabetes often begins in children and young adults, but it can appear at any age. Having a parent or sibling with type 1 diabetes may increase your chance of developing it.
What are the symptoms of type 1 diabetes?
Symptoms often start quickly, especially in children. In adults, they may develop more slowly. Symptoms may include:
Feeling very thirsty
Feeling very hungry
Urinating (peeing) more often, including at night
Having fatigue
Having blurry vision
Losing feeling in your feet, or having tingling in your feet or hands
Having sores that don't heal
Losing weight without trying
How is type 1 diabetes diagnosed?
Blood tests that measure your blood glucose level can show whether it is higher than normal for you.
What are the treatments for type 1 diabetes?
Type 1 diabetes is a chronic (long-term) condition. You will need daily insulin, either through injections or an insulin pump. Some people also take another diabetes medicine that works with insulin.
Ask your health care provider about the best way to check your blood glucose level and how often you should check it.
Can type 1 diabetes be prevented?
Type 1 diabetes can't be prevented. But you may be able to prevent or delay health problems related to diabetes by:
Managing your blood glucose level with finger prick tests or a continuous glucose monitor (CGM)
Making healthy food choices
Getting regular exercise
A blood test called the A1C can show how well you are managing your diabetes over time.
NIH: National Institute of Diabetes and Digestive and Kidney Diseases

Source: MedlinePlus, National Library of Medicine.

Related terms in the cited sources

Medicines with an official indication for this condition

Teplizumab Treatment

In alphabetical order.

Next to it in ICD-10

Neighbouring codes in the classification, not a medical link.

External resources

Questions

What is the ICD-10 code for Type 1 diabetes?

E10 (WHO, International Classification of Diseases, 10th Revision).

What is the ICD-11 code for Type 1 diabetes?

5A10: Type 1 diabetes mellitus (WHO, ICD-11 for Mortality and Morbidity Statistics).

Sources and attribution

Names other than the official source titles: Anpheros translations and plain-language names, made with AI assistance and checked automatically; the source names are in English.
Source: MedlinePlus, National Library of Medicine.
ICD-10 codes and titles © World Health Organization. Source: WHO, International Classification of Diseases, 10th Revision (2019).

Anpheros Search catalog 2026.10.5, published 17 October 2026. About the data →

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Treatments. Indications are quoted unchanged from official product information (European Medicines Agency, U.S. Food and Drug Administration). They describe what a medicine is approved for, not whether it is right for you. Approved uses can differ between countries. Always read the package leaflet and follow your doctor's or pharmacist's advice.

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