ICD-10-CM Code E11.9

Type 2 diabetes mellitus without complications

Version 2020 Billable Code Questionable Admission Codes Family Practice Internal Medicine Pediatrics

Valid for Submission

E11.9 is a billable code used to specify a medical diagnosis of type 2 diabetes mellitus without complications. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code E11.9 might also be used to specify conditions or terms like acquired acanthosis nigricans, acquired ichthyosis, atherosclerosis, deafness, diabetes, epilepsy, nephropathy syndrome, attends diabetes monitoring, blood sugar charts, brittle diabetes mellitus, etc

The code E11.9 is not usually sufficient justification for admission to an acute care hospital when used as a principal diagnosis.

The code is commonly used in family practice, internal medicine, pediatrics medical specialties to specify clinical concepts such as diabetes mellitus w/o complications type 2.

Short Description:Type 2 diabetes mellitus without complications
Long Description:Type 2 diabetes mellitus without complications

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code E11.9 are found in the index:

Code Edits

The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10 Code Edits are applicable to this code:

  • Questionable admission codes - Some diagnoses are not usually sufficient justification for admission to an acute care hospital. For example, if a patient is given code R030 for elevated blood pressure reading, without diagnosis of hypertension, then the patient would have a questionable admission, since elevated blood pressure reading is not normally sufficient justification for admission to a hospital.


The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Acquired acanthosis nigricans
  • Acquired ichthyosis
  • Atherosclerosis, deafness, diabetes, epilepsy, nephropathy syndrome
  • Attends diabetes monitoring
  • Blood sugar charts
  • Brittle diabetes mellitus
  • Brittle type 2 diabetes mellitus
  • Diabetes mellitus
  • Diabetes mellitus associated with genetic syndrome
  • Diabetes mellitus in remission
  • Diabetes mellitus type 2 without retinopathy
  • Diabetes mellitus without complication
  • Diabetes monitoring check done
  • Diabetes monitoring default
  • Diabetes monitoring deleted
  • Diabetes: practice program
  • Diabetes: shared care program
  • Diabetic - cooperative patient
  • Diabetic - follow-up default
  • Diabetic - good control
  • Diabetic dermopathy
  • Diabetic dermopathy associated with diabetes mellitus type 2
  • Diabetic drug side effects
  • Diabetic monitoring - injection sites
  • Diabetic on diet only
  • Diabetic on insulin
  • Diabetic on insulin and oral treatment
  • Diabetic on non-insulin injectable medication
  • Diabetic on oral treatment
  • Diabetic treatment changed
  • Diabetic-uncooperative patient
  • Does rotate site of insulin injection
  • Has seen dietitian - diabetes
  • Hemoglobin A1C - diabetic control finding
  • Hemoglobin A1C - diabetic control finding
  • Hemoglobin A1C - diabetic control finding
  • Hemoglobin A1C - diabetic control finding
  • Hemoglobin A1c between 7%-10% indicating borderline diabetic control
  • Hemoglobin A1c between 7%-9% indicating borderline diabetic control
  • Hemoglobin A1c greater than 10% indicating poor diabetic control
  • Hemoglobin A1c less than 7% indicating good diabetic control
  • Insulin treated type 2 diabetes mellitus
  • Lactic acidosis
  • Lactic acidosis with diabetes mellitus
  • Maturity onset diabetes of the young, type 2
  • Megaloblastic anemia due to inborn errors of metabolism
  • Megaloblastic anemia, thiamine-responsive, with diabetes mellitus and sensorineural deafness
  • Metabolic acidosis with diabetes mellitus
  • Newly diagnosed diabetes
  • Photomyoclonus, diabetes mellitus, deafness, nephropathy and cerebral dysfunction
  • Pre-existing type 2 diabetes mellitus
  • Proximal tubulopathy, diabetes mellitus, cerebellar ataxia syndrome
  • Thiamine-responsive megaloblastic anemia
  • Type 2 diabetes mellitus
  • Type 2 diabetes mellitus controlled by diet
  • Type 2 diabetes mellitus in nonobese
  • Type 2 diabetes mellitus well controlled
  • Type 2 diabetes mellitus with acanthosis nigricans
  • Type 2 diabetes mellitus without complication
  • Type II diabetes mellitus in remission
  • Understands diet - diabetes
  • Urine sugar charts

Convert E11.9 to ICD-9

  • 250.00 - DMII wo cmp nt st uncntr (Approximate Flag)

Code Classification

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

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients

Diabetes Type 2

Diabetes means your blood glucose, or blood sugar, levels are 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, have obesity, have a family history of diabetes, or do not exercise. Having prediabetes also increases your risk. Prediabetes means that your blood sugar is higher than normal but not high enough to be called diabetes. If you are at risk for type 2 diabetes, you may be able to delay or prevent developing it by making some lifestyle changes.

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

Blood tests can show if you have diabetes. One type of test, the A1C, can also check on how you are managing your diabetes. Many people can manage their diabetes through healthy eating, physical activity, and blood glucose testing. Some people also need to take diabetes medicines.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases

[Learn More]

Type 2 diabetes Type 2 diabetes is a disorder characterized by abnormally high blood sugar levels. In this form of diabetes, the body stops using and making insulin properly. Insulin is a hormone produced in the pancreas that helps regulate blood sugar levels. Specifically, insulin controls how much glucose (a type of sugar) is passed from the blood into cells, where it is used as an energy source. When blood sugar levels are high (such as after a meal), the pancreas releases insulin to move the excess glucose into cells, which reduces the amount of glucose in the blood.Most people who develop type 2 diabetes first have insulin resistance, a condition in which the body's cells use insulin less efficiently than normal. As insulin resistance develops, more and more insulin is needed to keep blood sugar levels in the normal range. To keep up with the increasing need, insulin-producing cells in the pancreas (called beta cells) make larger amounts of insulin. Over time, the beta cells become less able to respond to blood sugar changes, leading to an insulin shortage that prevents the body from reducing blood sugar levels effectively. Most people have some insulin resistance as they age, but inadequate exercise and excessive weight gain make it worse, greatly increasing the likelihood of developing type 2 diabetes.Type 2 diabetes can occur at any age, but it most commonly begins in middle age or later. Signs and symptoms develop slowly over years. They include frequent urination (polyuria), excessive thirst (polydipsia), fatigue, blurred vision, tingling or loss of feeling in the hands and feet (diabetic neuropathy), sores that do not heal well, and weight loss. If blood sugar levels are not controlled through medication or diet, type 2 diabetes can cause long-lasting (chronic) health problems including heart disease and stroke; nerve damage; and damage to the kidneys, eyes, and other parts of the body.
[Learn More]