2022 ICD-10-CM Code E11.1

Type 2 diabetes mellitus with ketoacidosis

Version 2021

Not Valid for Submission

ICD-10:E11.1
Short Description:Type 2 diabetes mellitus with ketoacidosis
Long Description:Type 2 diabetes mellitus with ketoacidosis

Code Classification

  • Endocrine, nutritional and metabolic diseases (E00–E90)
    • Diabetes mellitus (E08-E13)
      • Type 2 diabetes mellitus (E11)

E11.1 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of type 2 diabetes mellitus with ketoacidosis. The code is not specific and is NOT valid for the year 2022 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Coding Guidelines

The diabetes mellitus codes are combination codes that include the type of diabetes mellitus, the body system affected, and the complications affecting that body system. As many codes within a particular category as are necessary to describe all of the complications of the disease may be used. They should be sequenced based on the reason for a particular encounter. Assign as many codes from categories E08 - E13 as needed to identify all of the associated conditions that the patient has.

If the type of diabetes mellitus is not documented in the medical record the default is E11.-, Type 2 diabetes mellitus.

Specific Coding for Type 2 diabetes mellitus with ketoacidosis

Non-specific codes like E11.1 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for type 2 diabetes mellitus with ketoacidosis:

  • BILLABLE CODE - Use E11.10 for Type 2 diabetes mellitus with ketoacidosis without coma
  • BILLABLE CODE - Use E11.11 for Type 2 diabetes mellitus with ketoacidosis with coma

Information for Patients


Diabetes Type 2

What is type 2 diabetes?

Type 2 diabetes is a disease in which your blood glucose, or blood sugar, levels are too high. Glucose is your main source of energy. It comes from the foods you eat. A hormone called insulin helps the glucose get into your cells to give them energy. If you have diabetes, your body doesn't make enough insulin or doesn't use insulin well. The glucose then stays in your blood and not enough goes into your cells.

Over time, having too much glucose in your blood can cause health problems. But you can take steps to manage your diabetes and try to prevent these health problems.

What causes type 2 diabetes?

Type 2 diabetes may be caused by a combination of factors:

Type 2 diabetes usually starts with insulin resistance. This is a condition in which your cells don't respond normally to insulin. As a result, your body needs more insulin to help the glucose enter your cells. At first, your body makes more insulin to try to get cells to respond. But over time, your body can't make enough insulin, and your blood glucose levels rise.

Who is at risk for type 2 diabetes?

You are at higher risk of developing type 2 diabetes if you

What are the symptoms of type 2 diabetes?

Many people with type 2 diabetes have no symptoms at all. If you do have them, the symptoms develop slowly over several years. They might be so mild that you do not notice them. The symptoms can include

How is type 2 diabetes diagnosed?

Your health care provider will use blood tests to diagnose type 2 diabetes. The blood tests include

What are the treatments for type 2 diabetes?

Treatment for type 2 diabetes involves managing your blood sugar levels. Many people are able to do this by living a healthy lifestyle. Some people may also need to take medicine.

Can type 2 diabetes be prevented?

You can take steps to help prevent or delay type 2 diabetes by losing weight if you are overweight, eating fewer calories, and being more physically active. If you have a condition which raises your risk for type 2 diabetes, managing that condition may lower your risk of getting type 2 diabetes.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases


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Type 2 Diabetes Learn about the symptoms of type 2 diabetes, what causes the disease, how it’s diagnosed, and steps you can take to help prevent or delay type 2 diabetes.
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Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018