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ICD-10 Guide
ICD-10 CodesChapter 4: Endocrine, nutritional and metabolic diseasesE06

E06

Billable

Thyroiditis

Chapter 4:Endocrine, nutritional and metabolic diseases

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

Code Description

ICD-10 E06 is a billable code used to indicate a diagnosis of thyroiditis.

Key Diagnostic Point:

Thyroiditis refers to the inflammation of the thyroid gland, which can result from various causes, including autoimmune disorders, infections, and radiation exposure. The most common form is Hashimoto's thyroiditis, an autoimmune condition where the immune system attacks the thyroid, leading to hypothyroidism. Symptoms may include fatigue, weight gain, sensitivity to cold, and depression. Other forms include subacute thyroiditis, which is often viral in origin and may present with pain and tenderness in the thyroid area, and postpartum thyroiditis, which occurs after childbirth. Diagnosis typically involves clinical evaluation, thyroid function tests (TFTs), and imaging studies. TFTs measure levels of thyroid hormones (T3, T4) and Thyroid-Stimulating Hormone (TSH) to assess thyroid function. Treatment varies based on the underlying cause and may include hormone replacement therapy for hypothyroidism or anti-inflammatory medications for inflammation. Iodine deficiency can also lead to thyroiditis, as adequate iodine is essential for thyroid hormone production. Understanding the nuances of thyroiditis is crucial for accurate diagnosis and management.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of underlying causes (autoimmune, infectious, etc.)
  • Differential diagnosis with other thyroid disorders
  • Need for comprehensive thyroid function tests interpretation
  • Potential for co-existing conditions (e.g., hyperthyroidism, hypothyroidism)

Audit Risk Factors

  • Inadequate documentation of symptoms and clinical findings
  • Failure to specify the type of thyroiditis
  • Misinterpretation of thyroid function test results
  • Lack of follow-up documentation for treatment efficacy

Specialty Focus

Medical Specialties

Endocrinology

Documentation Requirements

Detailed clinical history, including symptoms, lab results, and treatment plans.

Common Clinical Scenarios

Patients presenting with fatigue, weight changes, or goiter; follow-up of thyroid function tests.

Billing Considerations

Ensure clarity in distinguishing between types of thyroiditis and related disorders.

Primary Care

Documentation Requirements

Comprehensive patient history and physical examination findings.

Common Clinical Scenarios

Initial evaluation of thyroid symptoms, management of hypothyroidism or hyperthyroidism.

Billing Considerations

Documenting referrals to specialists and follow-up care is essential.

Coding Guidelines

Inclusion Criteria

Use E06 When
  • Follow the official ICD
  • CM coding guidelines, ensuring accurate documentation of the type of thyroiditis and any associated conditions
  • Include relevant lab results and clinical findings to support the diagnosis

Exclusion Criteria

Do NOT use E06 When
No specific exclusions found.

Related CPT Codes

84443CPT Code

Thyroid stimulating hormone (TSH)

Clinical Scenario

Used to evaluate thyroid function in patients with suspected thyroiditis.

Documentation Requirements

Document the reason for the test and any relevant clinical findings.

Specialty Considerations

Endocrinologists may require additional tests to assess thyroid function.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of thyroiditis, enabling better tracking of the condition and its various forms. This specificity aids in research and improves patient care by allowing for tailored treatment plans.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of thyroiditis, enabling better tracking of the condition and its various forms. This specificity aids in research and improves patient care by allowing for tailored treatment plans.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of thyroiditis, enabling better tracking of the condition and its various forms. This specificity aids in research and improves patient care by allowing for tailored treatment plans.

Resources

Clinical References

  • •
    American Thyroid Association

Coding & Billing References

  • •
    American Thyroid Association

Frequently Asked Questions

What is the difference between Hashimoto's thyroiditis and subacute thyroiditis?

Hashimoto's thyroiditis is an autoimmune condition leading to chronic inflammation and often results in hypothyroidism. Subacute thyroiditis is typically viral and presents with acute pain and tenderness in the thyroid, often resolving without long-term effects on thyroid function.