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ICD-10 Guide
ICD-10 CodesE07.9

E07.9

Billable

Disorder of thyroid, unspecified

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

Code Description

ICD-10 E07.9 is a billable code used to indicate a diagnosis of disorder of thyroid, unspecified.

Key Diagnostic Point:

E07.9 refers to an unspecified disorder of the thyroid gland, which can encompass a variety of conditions affecting thyroid function. The thyroid gland plays a crucial role in regulating metabolism, growth, and development through the secretion of hormones such as thyroxine (T4) and triiodothyronine (T3). Disorders may arise from various etiologies, including iodine deficiency, autoimmune diseases (like Hashimoto's thyroiditis or Graves' disease), and neoplasms. Symptoms can range from fatigue, weight changes, and temperature sensitivity to more severe manifestations like goiter or thyroid storm. Diagnosis typically involves thyroid function tests (TFTs) that measure levels of TSH, T3, and T4, alongside imaging studies or biopsies when indicated. Given the broad nature of this code, it is essential for coders to ensure that the clinical documentation supports the diagnosis of an unspecified thyroid disorder, as this can impact treatment and management strategies.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of potential underlying causes for thyroid disorders.
  • Need for comprehensive thyroid function tests interpretation.
  • Differentiation from other thyroid-related codes.
  • Potential overlap with other endocrine disorders.

Audit Risk Factors

  • Insufficient documentation to support the unspecified diagnosis.
  • Lack of clarity on the specific thyroid disorder being treated.
  • Inconsistent use of thyroid function tests in documentation.
  • Failure to document the clinical rationale for the diagnosis.

Specialty Focus

Medical Specialties

Endocrinology

Documentation Requirements

Detailed thyroid function test results, clinical symptoms, and treatment plans.

Common Clinical Scenarios

Patients presenting with fatigue, weight changes, or goiter without a clear diagnosis.

Billing Considerations

Ensure that all relevant lab results and imaging studies are included in the documentation.

Primary Care

Documentation Requirements

Comprehensive patient history, physical examination findings, and any referrals to specialists.

Common Clinical Scenarios

Routine screening for thyroid disorders in patients with risk factors.

Billing Considerations

Document any family history of thyroid disease and related symptoms.

Coding Guidelines

Inclusion Criteria

Use E07.9 When
  • According to ICD
  • 10 guidelines, E07
  • 9 should be used when the specific type of thyroid disorder is not documented
  • Coders should ensure that the documentation does not specify a more precise diagnosis that would warrant a different code

Exclusion Criteria

Do NOT use E07.9 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 thyroid disorders.

Documentation Requirements

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

Specialty Considerations

Endocrinologists may require more detailed lab results and patient history.

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, but E07.9 remains a catch-all for unspecified conditions. Coders must ensure that documentation is thorough to avoid potential denials or audits.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of thyroid disorders, but E07.9 remains a catch-all for unspecified conditions. Coders must ensure that documentation is thorough to avoid potential denials or audits.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of thyroid disorders, but E07.9 remains a catch-all for unspecified conditions. Coders must ensure that documentation is thorough to avoid potential denials or audits.

Resources

Clinical References

  • •
    American Thyroid Association

Coding & Billing References

  • •
    American Thyroid Association

Frequently Asked Questions

When should I use E07.9?

E07.9 should be used when the specific type of thyroid disorder is not documented, and the physician has indicated a thyroid issue without further specification.