ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesChapter 4: Endocrine, nutritional and metabolic diseasesE10

E10

Billable

Type 1 diabetes mellitus

Chapter 4:Endocrine, nutritional and metabolic diseases

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 E10 is a billable code used to indicate a diagnosis of type 1 diabetes mellitus.

Key Diagnostic Point:

Type 1 diabetes mellitus (T1DM) is a chronic autoimmune condition characterized by the destruction of insulin-producing beta cells in the pancreas, leading to absolute insulin deficiency. This condition typically manifests in childhood or adolescence, although it can occur at any age. Patients with T1DM require lifelong insulin therapy to manage blood glucose levels and prevent acute complications such as diabetic ketoacidosis (DKA) and long-term complications including neuropathy, nephropathy, and retinopathy. The pathophysiology involves an autoimmune response where the body's immune system mistakenly attacks and destroys the insulin-producing cells. Diagnosis is confirmed through clinical presentation and laboratory tests, including elevated blood glucose levels and the presence of autoantibodies. Management includes regular monitoring of blood glucose levels, maintaining HbA1c levels below 7% to reduce the risk of complications, and adjusting insulin dosages based on dietary intake and physical activity. Education on carbohydrate counting and the use of continuous glucose monitors is also essential for effective management.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiation between Type 1 and Type 2 diabetes
  • Management of insulin therapy and dosage adjustments
  • Monitoring and documentation of HbA1c levels
  • Identification of complications and comorbidities

Audit Risk Factors

  • Inadequate documentation of insulin therapy
  • Failure to document HbA1c levels
  • Omission of complications related to diabetes
  • Incorrect coding of diabetes type

Specialty Focus

Medical Specialties

Endocrinology

Documentation Requirements

Thorough documentation of insulin regimen, HbA1c levels, and any complications.

Common Clinical Scenarios

Management of newly diagnosed T1DM, adjustment of insulin therapy, and treatment of diabetic complications.

Billing Considerations

Ensure accurate coding of complications and comorbidities, as these can significantly impact treatment plans.

Pediatrics

Documentation Requirements

Detailed growth and development assessments, family history, and psychosocial factors.

Common Clinical Scenarios

Diagnosis of T1DM in children, management of insulin therapy, and education for families.

Billing Considerations

Consider age-specific guidelines and the impact of diabetes on growth and development.

Coding Guidelines

Inclusion Criteria

Use E10 When
  • Follow the official ICD
  • CM coding guidelines for diabetes mellitus
  • Include additional codes for complications and comorbidities as necessary
  • Ensure accurate documentation of the type of diabetes and any associated conditions

Exclusion Criteria

Do NOT use E10 When
No specific exclusions found.

Related CPT Codes

99213CPT Code

Established patient office visit, Level 3

Clinical Scenario

Used for routine follow-up visits for T1DM management.

Documentation Requirements

Document patient history, examination findings, and management plan.

Specialty Considerations

Endocrinologists may require more detailed documentation of diabetes management.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of diabetes types and complications, improving the accuracy of diabetes management documentation and reimbursement.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of diabetes types and complications, improving the accuracy of diabetes management documentation and reimbursement.

Reimbursement & Billing Impact

reimbursement.

Resources

Clinical References

  • •
    American Diabetes Association

Coding & Billing References

  • •
    American Diabetes Association

Frequently Asked Questions

What is the difference between Type 1 and Type 2 diabetes?

Type 1 diabetes is an autoimmune condition leading to insulin deficiency, while Type 2 diabetes is primarily due to insulin resistance. Type 1 typically requires insulin therapy from diagnosis.