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ICD-10 Guide
ICD-10 CodesE06.5

E06.5

Billable

Other chronic thyroiditis

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

Code Description

ICD-10 E06.5 is a billable code used to indicate a diagnosis of other chronic thyroiditis.

Key Diagnostic Point:

Other chronic thyroiditis refers to a group of thyroid disorders characterized by inflammation of the thyroid gland that persists over time. This condition can arise from various etiologies, including autoimmune processes, infections, or exposure to certain medications. Chronic thyroiditis can lead to alterations in thyroid hormone production, resulting in either hypothyroidism or hyperthyroidism, depending on the nature and extent of the inflammation. Patients may present with symptoms such as fatigue, weight changes, and changes in mood or cognitive function. Diagnosis typically involves a combination of clinical evaluation, laboratory tests measuring thyroid function (such as TSH, Free T4, and Free T3), and imaging studies when necessary. The management of chronic thyroiditis may include monitoring thyroid function, hormone replacement therapy, or addressing underlying causes such as iodine deficiency. Understanding the nuances of this condition is crucial for accurate coding and effective patient management.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of underlying causes leading to chronic thyroiditis.
  • Overlap with other thyroid disorders, complicating diagnosis.
  • Need for comprehensive thyroid function tests for accurate assessment.
  • Potential for co-existing conditions affecting treatment and coding.

Audit Risk Factors

  • Inadequate documentation of the specific type of thyroiditis.
  • Failure to document thyroid function test results.
  • Misclassification of acute versus chronic thyroiditis.
  • Lack of clarity on the patient's symptoms and clinical findings.

Specialty Focus

Medical Specialties

Endocrinology

Documentation Requirements

Detailed clinical notes on thyroid function tests, symptoms, and treatment plans.

Common Clinical Scenarios

Patients presenting with fatigue, weight gain, or changes in mood due to thyroid dysfunction.

Billing Considerations

Ensure comprehensive documentation of lab results and any imaging studies performed.

Primary Care

Documentation Requirements

Thorough history and physical examination notes, including patient-reported symptoms.

Common Clinical Scenarios

Routine screening for thyroid disorders in patients with risk factors such as family history or iodine deficiency.

Billing Considerations

Document any referrals to specialists and follow-up care provided.

Coding Guidelines

Inclusion Criteria

Use E06.5 When
  • Follow the official ICD
  • CM coding guidelines, ensuring accurate documentation of the condition's chronicity and any associated symptoms
  • Include relevant lab results and treatment plans to support the diagnosis

Exclusion Criteria

Do NOT use E06.5 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

84443CPT Code

Thyroid stimulating hormone (TSH)

Clinical Scenario

Used to evaluate thyroid function in patients suspected of having chronic thyroiditis.

Documentation Requirements

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

Specialty Considerations

Endocrinologists may require additional tests based on initial TSH results.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of thyroid disorders, including chronic thyroiditis, which helps in better tracking and management of these conditions. It has improved the granularity of data for research and treatment outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of thyroid disorders, including chronic thyroiditis, which helps in better tracking and management of these conditions. It has improved the granularity of data for research and treatment outcomes.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of thyroid disorders, including chronic thyroiditis, which helps in better tracking and management of these conditions. It has improved the granularity of data for research and treatment outcomes.

Resources

Clinical References

  • •
    American Thyroid Association Guidelines

Coding & Billing References

  • •
    American Thyroid Association Guidelines

Frequently Asked Questions

What are the common symptoms of chronic thyroiditis?

Common symptoms include fatigue, weight changes, mood swings, and cognitive difficulties. Some patients may also experience goiter or changes in heart rate.