2025 ICD-10-CM Diagnosis Code E10

by

Type 1 diabetes mellitus

  • E10 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 E10 became effective on October 1, 2024.
  • This is the American ICD-10-CM version of E10 – other international versions of ICD-10 E10 may differ.

Type 1 Excludes

  • diabetes 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.-)

Includes

  • brittle diabetes (mellitus)
  • diabetes (mellitus) due to autoimmune process
  • diabetes (mellitus) due to immune mediated pancreatic islet beta-cell destruction
  • idiopathic diabetes (mellitus)
  • juvenile onset diabetes (mellitus)
  • ketosis-prone diabetes (mellitus)

The following code(s) above E10 contain annotation back-references

 that may be applicable to E10:

  • E00-E89  Endocrine, nutritional and metabolic diseases

Clinical Information

  • 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.
  • diabetes means your blood glucose, or blood sugar, is too high. With type 1 diabetes, your pancreas does not make insulin. 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. Type 1 diabetes happens most often in children and young adults but can appear at any age. Symptoms may include
    • being very thirsty
    • urinating often
    • feeling very hungry or tired
    • losing weight without trying
    • having sores that heal slowly
    • having dry, itchy skin
    • losing the feeling in your feet or having tingling in your feet
    • having blurry eyesight
    a blood test can show if you have diabetes. If you do, you will need to take insulin for the rest of your life.
  • Diabetes mellitus characterized by insulin deficiency, sudden onset, severe hyperglycemia, rapid progression to ketoacidosis, and death unless treated with insulin. The disease may occur at any age, but is most common in childhood or adolescence.
  • 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.

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 E10:

  • Type 1 Excludes: E08, E09, E11, Q45.3, E13, E13, E13
  • Use Additional: O24.0
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