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ICD-10 Coding for Thyroid Gland Diseases(E03.9, E06.3)

Complete ICD-10-CM coding and documentation guide for Thyroid Gland Diseases. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

Thyroid DisordersThyroid Conditions

Related ICD-10 Code Ranges

Complete code families applicable to Thyroid Gland Diseases

E00-E07Primary Range

Disorders of thyroid gland

This range includes all primary thyroid disorders, including hypothyroidism, hyperthyroidism, and thyroiditis.

Postprocedural hypothyroidism

Used for hypothyroidism resulting from surgical procedures on the thyroid.

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescriptionWhen to UseKey Documentation
E03.9Hypothyroidism, unspecifiedUse when specific cause of hypothyroidism is not documented.
  • TSH >4.5 mIU/L
  • Low FT4 levels
E06.3Autoimmune thyroiditisUse for confirmed autoimmune thyroiditis with lab support.
  • Elevated TPOAb levels
  • TSH elevation

Clinical Decision Support

Always review the patient's clinical documentation thoroughly. When in doubt, choose the more specific code and ensure documentation supports it.

Key Information: ICD-10 code for unspecified hypothyroidism

Essential facts and insights about Thyroid Gland Diseases

The ICD-10 code for unspecified hypothyroidism is E03.9, used when the specific cause is not documented.

Primary ICD-10-CM Codes for disease of thyroid gland

Hypothyroidism, unspecified
Billable Code

Decision Criteria

clinical Criteria

  • TSH >4.5 mIU/L with low FT4

documentation Criteria

  • Lack of specific etiology in records

Applicable To

  • Unspecified hypothyroidism

Excludes

Clinical Validation Requirements

  • TSH >4.5 mIU/L
  • Low FT4 levels

Code-Specific Risks

  • Overuse when specific etiology is known

Coding Notes

  • Ensure lab results support the diagnosis.

Ancillary Codes

Additional codes that should be used in conjunction with the main diagnosis codes when applicable.

Underdosing of thyroid hormones

T38.1X6A
Use when underdosing is documented.

Differential Codes

Alternative codes to consider when ruling out similar conditions to the primary diagnosis.

Postprocedural hypothyroidism

E89.0
Use E89.0 for hypothyroidism following thyroid surgery.

Hypothyroidism, unspecified

E03.9
Use E03.9 if autoimmune etiology is not confirmed.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Thyroid Gland Diseases to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code E03.9.

Impact

Clinical: Inaccurate treatment plans., Regulatory: Non-compliance with coding standards., Financial: Potential claim denials.

Mitigation Strategy

Ensure detailed documentation of thyroid disorder type., Use specific ICD-10 codes when possible.

Impact

Reimbursement: Potential for denied claims due to lack of specificity., Compliance: Non-compliance with coding guidelines., Data Quality: Decreased accuracy in health records.

Mitigation Strategy

Use specific codes like E06.3 for autoimmune causes.

Impact

High risk of audit for using E03.9 without specific etiology.

Mitigation Strategy

Use specific codes and ensure lab results are documented.

Documentation errors, coding pitfalls, and audit risks are interconnected aspects of medical coding and billing. Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.

Frequently Asked Questions

Common questions about ICD-10 coding for Thyroid Gland Diseases, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Thyroid Gland Diseases

Use these documentation templates to ensure complete and accurate documentation for Thyroid Gland Diseases. These templates include all required elements for proper coding and billing.

Hashimoto's Thyroiditis Management

Specialty: Endocrinology

Required Elements

  • Patient symptoms
  • TSH and FT4 levels
  • Antibody test results
  • Medication adherence

Example Documentation

**Subjective**: Fatigue, weight gain. **Objective**: TSH 8.7 mIU/L, TPOAb 300 IU/mL. **Assessment**: Autoimmune hypothyroidism. **Plan**: Adjust medication.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Hypothyroidism treated with levothyroxine.
Good Documentation Example
Hashimoto’s thyroiditis confirmed by TPOAb 250 IU/mL. Adjust levothyroxine dose.
Explanation
The good example specifies the autoimmune cause and includes lab confirmation.

Need help with ICD-10 coding for Thyroid Gland Diseases? Ask your questions below.

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