2025 ICD-10-CM Diagnosis Code E11

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Type 2 diabetes mellitus

  • E11 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2025 edition of ICD-10-CM E11 became effective on October 1, 2024.
  • This is the American ICD-10-CM version of E11 – other international versions of ICD-10 E11 may differ.

Use Additional

  • code to identify control using:
  • injectable non-insulin antidiabetic drugs (Z79.85)
  • insulin (Z79.4)
  • oral antidiabetic drugs (Z79.84)
  • oral hypoglycemic drugs (Z79.84)

Type 1 Excludes

  • diabetes mellitus due to underlying condition (E08.-)
  • drug or chemical induced diabetes mellitus (E09.-)
  • gestational diabetes (O24.4-)
  • neonatal diabetes mellitus (P70.2)
  • postpancreatectomy diabetes mellitus (E13.-)
  • postprocedural diabetes mellitus (E13.-)
  • secondary diabetes mellitus NEC (E13.-)
  • type 1 diabetes mellitus (E10.-)

Includes

  • diabetes (mellitus) due to insulin secretory defect
  • diabetes NOS
  • insulin resistant diabetes (mellitus)

The following code(s) above E11 contain annotation back-references

 that may be applicable to E11:

  • E00-E89  Endocrine, nutritional and metabolic diseases

Clinical Information

  • A disease in which the body does not control the amount of glucose (a type of sugar) in the blood and the kidneys make a large amount of urine. This disease occurs when the body does not make enough insulin or does not use it the way it should.
  • A heterogeneous group of disorders characterized by hyperglycemia and glucose intolerance.
  • A metabolic disorder characterized by abnormally high blood sugar levels due to diminished production of insulin or insulin resistance/desensitization.
  • A subclass of diabetes mellitus that is not insulin-responsive or dependent (niddm). It is characterized initially by insulin resistance and hyperinsulinemia; and eventually by glucose intolerance; hyperglycemia; and overt diabetes. Type ii diabetes mellitus is no longer considered a disease exclusively found in adults. Patients seldom develop ketosis but often exhibit obesity.
  • A type of diabetes mellitus that is characterized by insulin resistance or desensitization and increased blood glucose levels. This is a chronic disease that can develop gradually over the life of a patient and can be linked to both environmental factors and heredity.
  • Diabetes is a disease in which your blood glucose, or sugar, levels are too high. Glucose comes from the foods you eat. Insulin is a hormone that helps the glucose get into your cells to give them energy. With type 1 diabetes, your body does not make insulin. With type 2 diabetes, the more common type, your body does not make or use insulin well. Without enough insulin, the glucose stays in your blood.over time, having too much glucose in your blood can cause serious problems. It can damage your eyes, kidneys, and nerves. Diabetes can also cause heart disease, stroke and even the need to remove a limb. Pregnant women can also get diabetes, called gestational diabetes.a blood test can show if you have diabetes. Exercise, weight control and sticking to your meal plan can help control your diabetes. You should also monitor your glucose level and take medicine if prescribed.
  • diabetes means your blood glucose, or blood sugar, is too high. With type 2 diabetes, the more common type, your body does not make or use insulin well. Insulin is a hormone that helps glucose get into your cells to give them energy. 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, and gums and teeth.you have a higher risk of type 2 diabetes if you are older, obese, have a family history of diabetes, or do not exercise.the symptoms of type 2 diabetes appear slowly. Some people do not notice symptoms at all. The symptoms can include
    • being very thirsty
    • urinating often
    • feeling very hungry or tired
    • losing weight without trying
    • having sores that heal slowly
    • having blurry eyesight
    a blood test can show if you have diabetes. Many people can manage their diabetes through healthy eating, physical activity, and blood glucose testing. Some people also need to take diabetes medicines.
  • Diabetes mellitus
  • Heterogeneous group of disorders that share glucose intolerance in common.
  • Subclass of diabetes mellitus that is not insulin responsive or dependent; characterized initially by insulin resistance and hyperinsulinemia and eventually by glucose intolerance, hyperglycemia, and overt diabetes; type ii diabetes mellitus is no longer considered a disease exclusively found in adults; patients seldom develop ketosis but often exhibit obesity.

Code History

  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
  • 2024 (effective 10/1/2023): No change
  • 2025 (effective 10/1/2024): No change

Code annotations containing back-references to E11:

  • Type 1 Excludes: E08, E09, E10, E87.2
  • Type 2 Excludes: E87.0
  • Use Additional: O24.1, O24.3
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