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v1.0.0
ICD-10 Guide
DiagnosesHypertension Associated With Diabetes

Hypertension Associated With Diabetes

ICD-10 Coding for Hypertension Associated with Diabetes(E11.22, I12.9)

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

Diagnosis Overview

What is Hypertension Associated With Diabetes?
Essential facts and insights about Hypertension Associated with Diabetes

Key Clinical Considerations:

  • Elevated blood pressure readings (systolic ≥ 130 mmHg or diastolic ≥ 80 mmHg)
  • Symptoms may include headaches, dizziness, or blurred vision
  • Key diagnostic tests include blood pressure monitoring and blood glucose levels

Clinical Information

Clinical Criteria & Documentation Requirements

  • Document patient's blood pressure readings and diabetes status
  • Use specific terms like 'hypertensive heart disease' or 'diabetes mellitus with hypertension'
  • Examples include noting the duration of hypertension and diabetes management strategies

Coding Guidelines

Usage Guidelines & Examples

  • Follow usage guidelines for dual coding of hypertension and diabetes.
  • Common errors include incorrect sequencing of codes and missing documentation.

Code Exclusions

Important Exclusions

  • Secondary hypertension due to other conditions.
  • Alternative codes for isolated hypertension or diabetes without hypertension.

Related ICD-10 Codes

Primary Codes
I10
Essential (primary) hypertension
E11.9
Type 2 diabetes mellitus without complications
E11.65
Type 2 diabetes mellitus with hyperglycemia
Ancillary Codes
N18.3
E11.22
.
N18.4
I12.9
.
Differential Codes
E11.9
E11.9
when no complications like CKD are documented.
I10
I10
when CKD is not related to hypertension.

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Primary Care

Specialty Applications

  • Patients with concurrent hypertension and diabetes, particularly Type 2 diabetes.
  • Primary care settings, endocrinology clinics, and cardiology practices.

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

What are the documentation requirements?

Document blood pressure readings, diabetes type, and any related complications.

What are the billing considerations?

Ensure accurate coding for both hypertension and diabetes to avoid claim denials.