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
DiagnosesHeterogeneous Thyroid

Heterogeneous Thyroid

ICD-10 Coding for Heterogeneous Thyroid(E06.3, E04.2)

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

Diagnosis Overview

What is Heterogeneous Thyroid?
Essential facts and insights about Heterogeneous Thyroid

Key Clinical Considerations:

  • Variable thyroid function tests indicating mixed hyperthyroid and hypothyroid states
  • Presence of nodules or goiter on imaging studies
  • Symptoms may include fatigue, weight changes, temperature sensitivity, and mood disturbances

Clinical Information

Clinical Criteria & Documentation Requirements

  • Thorough patient history including symptoms and family history of thyroid disease
  • Use of specific terms such as 'heterogeneous echogenicity' in ultrasound reports
  • Examples include detailed descriptions of thyroid size, nodularity, and vascularity

Coding Guidelines

Usage Guidelines & Examples

  • Follow usage guidelines for distinguishing between hyperthyroid and hypothyroid states.
  • Common errors include misclassifying the type of thyroid dysfunction.

Code Exclusions

Important Exclusions

  • Conditions such as thyroiditis or malignancy that may present similarly
  • Alternative codes for specific thyroid disorders like Hashimoto's or Graves' disease

Related ICD-10 Codes

Primary Codes
E03.9
Hypothyroidism, unspecified
E05.90
Thyrotoxicosis, unspecified
Ancillary Codes
R94.6
Differential Codes
E05.90
C73

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Endocrinology

Specialty Applications

  • Patients with thyroid nodules, goiter, or unexplained thyroid function test abnormalities
  • Endocrinology clinics and 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

What are the documentation requirements?

Include detailed thyroid function tests, imaging results, and clinical symptoms.

What are the billing considerations?

Ensure accurate coding based on the specific thyroid condition and associated symptoms.