ICD-10-CM Code O24.4

Gestational diabetes mellitus

Version 2020 Non-Billable Code

Not Valid for Submission

O24.4 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of gestational diabetes mellitus. The code is NOT valid for the year 2020 for the submission of HIPAA-covered transactions.

ICD-10:O24.4
Short Description:Gestational diabetes mellitus
Long Description:Gestational diabetes mellitus

Consider the following ICD-10 codes with a higher level of specificity:

  • O24.41 - Gestational diabetes mellitus in pregnancy
  • O24.410 - Gestational diabetes mellitus in pregnancy, diet controlled
  • O24.414 - Gestational diabetes mellitus in pregnancy, insulin controlled
  • O24.415 - Gestational diabetes mellitus in pregnancy, controlled by oral hypoglycemic drugs
  • O24.419 - Gestational diabetes mellitus in pregnancy, unspecified control
  • O24.42 - Gestational diabetes mellitus in childbirth
  • O24.420 - Gestational diabetes mellitus in childbirth, diet controlled
  • O24.424 - Gestational diabetes mellitus in childbirth, insulin controlled
  • O24.425 - Gestational diabetes mellitus in childbirth, controlled by oral hypoglycemic drugs
  • O24.429 - Gestational diabetes mellitus in childbirth, unspecified control
  • O24.43 - Gestational diabetes mellitus in the puerperium
  • O24.430 - Gestational diabetes mellitus in the puerperium, diet controlled
  • O24.434 - Gestational diabetes mellitus in the puerperium, insulin controlled
  • O24.435 - Gestational diabetes mellitus in puerperium, controlled by oral hypoglycemic drugs
  • O24.439 - Gestational diabetes mellitus in the puerperium, unspecified control

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code O24.4:

Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Diabetes mellitus arising in pregnancy
  • Gestational diabetes mellitus NOS

Clinical Information

  • DIABETES GESTATIONAL-. diabetes mellitus induced by pregnancy but resolved at the end of pregnancy. it does not include previously diagnosed diabetics who become pregnant pregnancy in diabetics. gestational diabetes usually develops in late pregnancy when insulin antagonistic hormones peaks leading to insulin resistance; glucose intolerance; and hyperglycemia.

Code Classification

  • Pregnancy, childbirth and the puerperium (O00–O99)
    • Other maternal disorders predominantly related to pregnancy (O20-O29)
      • Diabetes in pregnancy, childbirth, and the puerperium (O24)

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 and Pregnancy

Diabetes is a disease in which your blood glucose, or blood sugar, levels are too high. When you are pregnant, high blood sugar levels are not good for your baby.

About seven out of every 100 pregnant women in the United States get gestational diabetes. Gestational diabetes is diabetes that happens for the first time when a woman is pregnant. Most of the time, it goes away after you have your baby. But it does increase your risk for developing type 2 diabetes later on. Your child is also at risk for obesity and type 2 diabetes.

Most women get a test to check for diabetes during their second trimester of pregnancy. Women at higher risk may get a test earlier.

If you already have diabetes, the best time to control your blood sugar is before you get pregnant. High blood sugar levels can be harmful to your baby during the first weeks of pregnancy - even before you know you are pregnant. To keep you and your baby healthy, it is important to keep your blood sugar as close to normal as possible before and during pregnancy.

Either type of diabetes during pregnancy increases the chances of problems for you and your baby. To help lower the chances talk to your health care team about

  • A meal plan for your pregnancy
  • A safe exercise plan
  • How often to test your blood sugar
  • Taking your medicine as prescribed. Your medicine plan may need to change during pregnancy.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases


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Gestational Diabetes Learn about gestational diabetes, including symptoms, causes, diagnosis, and management. Find out what you can do to help prevent gestational diabetes.
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Gestational diabetes Gestational diabetes is a disorder characterized by abnormally high blood sugar levels during pregnancy. Affected women do not have diabetes before they are pregnant, and most of these women go back to being nondiabetic soon after the baby is born. The disease has a 30 to 70 percent chance of recurring in subsequent pregnancies. Additionally, about half of women with gestational diabetes develop another form of diabetes, known as type 2 diabetes, within a few years after their pregnancy.Gestational diabetes is often discovered during the second trimester of pregnancy. Most affected women have no symptoms, and the disease is discovered through routine screening at their obstetrician's office. If untreated, gestational diabetes increases the risk of pregnancy-associated high blood pressure (called preeclampsia) and early (premature) delivery of the baby.Babies of mothers with gestational diabetes tend to be large (macrosomia), which can cause complications during birth. Infants whose mothers have gestational diabetes are also more likely to develop dangerously low blood sugar levels soon after birth. Later in life, these individuals have an increased risk of developing obesity, heart disease, and type 2 diabetes.
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