Understanding ICD-10 Codes for Diabetes Mellitus

ICD-10 (International Classification of Diseases, Tenth Revision) is a standardized system used worldwide to classify and code medical conditions, including diabetes mellitus. The ICD-10 coding system provides a comprehensive framework for accurately documenting and categorizing different types and complications of diabetes.

In this article, we will explore the ICD-10 codes associated with diabetes mellitus, including codes for different types, complications, and related conditions.

1. ICD-10 Codes for Diabetes Mellitus Types

ICD-10 codes are used to specify different types of diabetes mellitus. The main codes for diabetes types are as follows:

  1. E10: Type 1 diabetes mellitus. This code is used when documenting the diagnosis of type 1 diabetes, which is characterized by the destruction of insulin-producing beta cells in the pancreas.
  2. E11: Type 2 diabetes mellitus. This code is used for the diagnosis of type 2 diabetes, which typically develops in adulthood and is associated with insulin resistance and impaired insulin secretion.
  3. O24.4: Gestational diabetes mellitus. This code is specifically used for gestational diabetes, which occurs during pregnancy and typically resolves after childbirth.

2. ICD-10 Codes for Diabetes Mellitus Complications

ICD-10 includes codes for various complications that can arise from diabetes mellitus. Some common codes for diabetes complications include:

  1. E08-E13.8: Codes from this range are used to document specific complications of diabetes mellitus, including diabetic neuropathy, diabetic retinopathy, diabetic nephropathy, and other diabetes-related conditions.
  2. E10.1: Diabetic ketoacidosis. This code is used to document the diagnosis of diabetic ketoacidosis, a potentially life-threatening complication that can occur in individuals with type 1 diabetes.
  3. E10.9: Diabetic foot ulcer. This code is used to specify the presence of foot ulcers in individuals with diabetes.
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3. ICD-10 Codes for Diabetes Mellitus with Other Conditions

ICD-10 also includes codes to indicate diabetes mellitus in conjunction with other conditions, such as:

  1. E11.5: This code indicates the presence of diabetes with associated circulatory problems, such as peripheral vascular disease.
  2. E11.9: Type 2 diabetes mellitus without complications. This code is used when documenting type 2 diabetes without any specified complications.
  3. E13.0: Other specified diabetes mellitus with hyperosmolarity. This code is used to indicate hyperosmolar hyperglycemic state, a severe complication of diabetes characterized by high blood sugar levels and dehydration.

4. Proper Documentation and Coding for Diabetes Mellitus

Accurate documentation and coding of diabetes mellitus are crucial for proper medical recordkeeping, billing, and research purposes. Healthcare providers and coders should be familiar with the specific ICD-10 codes relevant to diabetes mellitus and its associated complications.

It is important to note that the codes mentioned in this article provide a general overview of the ICD-10 coding system for diabetes mellitus.

However, there are numerous additional codes within the ICD-10 system that provide more specific information about the type, complications, and associated conditions of diabetes. Healthcare providers and coders should consult the official ICD-10 coding guidelines and manuals for comprehensive and up-to-date information.


ICD-10 codes are used to classify and code diabetes mellitus and its various types, complications, and associated conditions. Proper documentation and coding of diabetes are essential for accurate medical recordkeeping and billing.

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Understanding the specific ICD-10 codes for diabetes mellitus allows healthcare providers and coders to effectively communicate and track the diagnosis, treatment, and management of diabetes, leading to improved patient care and outcomes.