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ICD-10 Guide
DiagnosesHyperglycemia Due To Diabetes Mellitus

Hyperglycemia Due To Diabetes Mellitus

ICD-10 Coding for Hyperglycemia due to Diabetes Mellitus(E11.65)

PRIMARY SPECIALTYEndocrinology
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Hyperglycemia Due To Diabetes Mellitus?
Essential facts and insights about Hyperglycemia due to Diabetes Mellitus

Key Clinical Considerations:

  • Elevated blood glucose levels (fasting > 126 mg/dL, random > 200 mg/dL)
  • Polyuria, polydipsia, unexplained weight loss
  • Signs of dehydration, fatigue, blurred vision

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient's blood glucose levels and symptoms documented
  • Use of specific terms like 'hyperglycemia' and 'diabetes mellitus'
  • Examples: 'Patient presents with hyperglycemia due to Type 2 diabetes mellitus, with a fasting glucose of 150 mg/dL.'

Coding Guidelines

Usage Guidelines & Examples

  • Follow guidelines for diabetes coding, avoid unspecified codes.
  • Common errors include using outdated codes or not specifying type of diabetes.

Code Exclusions

Important Exclusions

  • Diabetic ketoacidosis (E11.1)
  • Hyperglycemic hyperosmolar state (E11.0)

Related ICD-10 Codes

Primary Codes
E11.65
Hyperglycemia due to Type 2 diabetes mellitus
E10.65
Hyperglycemia due to Type 1 diabetes mellitus
Ancillary Codes
E11.8
Differential Codes
R73.9

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Endocrinology

Specialty Applications

  • Adults and children with diabetes mellitus
  • Endocrinology clinics, primary care settings

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

  • Comprehensive clinical documentation
  • Accurate code selection based on clinical criteria
  • Proper exclusion considerations
  • Specialty-specific coding guidelines

Documentation

Documentation Templates

Billing Information

Billing Considerations

  • Ensure proper documentation for billing
  • Verify code specificity requirements
  • Check for any additional codes needed
  • Review payer-specific guidelines

Common Issues

  • Insufficient clinical documentation
  • Incorrect code selection
  • Missing supporting diagnoses
  • Timing and frequency documentation

Frequently Asked Questions

Documentation requirements?

Document blood glucose levels, symptoms, and diabetes type.

Billing considerations?

Ensure accurate coding to reflect the type of diabetes and hyperglycemia.