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ICD-10 Coding for Hypothyroid Disease(E03.9, E89.0, E06.3)

Complete ICD-10-CM coding and documentation guide for Hypothyroid Disease. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

Underactive ThyroidHypothyroidism

Related ICD-10 Code Ranges

Complete code families applicable to Hypothyroid Disease

E00-E07Primary Range

Disorders of thyroid gland

This range includes all disorders related to thyroid function, including hypothyroidism.

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 hypothyroidism is diagnosed but no specific cause is documented.
  • TSH >4.5 mIU/L with normal T4
  • No identified cause
E89.0Postprocedural hypothyroidismUse for hypothyroidism following surgical or radioactive treatment of the thyroid.
  • History of thyroid surgery or radioactive iodine treatment
  • Elevated TSH levels post-procedure
E06.3Autoimmune thyroiditisUse when autoimmune thyroiditis is confirmed by lab tests.
  • Positive TPO antibodies
  • Goiter presence

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 hypothyroid disease

Essential facts and insights about Hypothyroid Disease

The ICD-10 code for unspecified hypothyroid disease is E03.9. For postprocedural hypothyroidism, use E89.0.

Primary ICD-10-CM Codes for hypothyroid disease

Hypothyroidism, unspecified
Billable Code

Decision Criteria

documentation Criteria

  • Lack of specific etiology in documentation

Applicable To

  • Acquired hypothyroidism NOS

Excludes

  • Congenital hypothyroidism (E03.0)

Clinical Validation Requirements

  • TSH >4.5 mIU/L with normal T4
  • No identified cause

Code-Specific Risks

  • Overuse due to lack of specific documentation

Coding Notes

  • Ensure documentation specifies why a more specific code is not applicable.

Differential Codes

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

Other specified hypothyroidism

E03.8
Use when a specific cause is known but not classified elsewhere.

Hypothyroidism, unspecified

E03.9
Use E03.9 when no procedural history is documented.

Documentation & Coding Risks

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

Impact

Clinical: Misdiagnosis risk, Regulatory: Audit trigger, Financial: Incorrect reimbursement

Mitigation Strategy

Thorough history taking, Detailed lab documentation

Impact

Reimbursement: Incorrect DRG assignment, Compliance: Potential audit risk, Data Quality: Inaccurate clinical data

Mitigation Strategy

Use E89.0 for postprocedural cases.

Impact

Using E03.9 without specific documentation.

Mitigation Strategy

Document specific causes or procedural history.

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 Hypothyroid Disease, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Hypothyroid Disease

Use these documentation templates to ensure complete and accurate documentation for Hypothyroid Disease. These templates include all required elements for proper coding and billing.

Post-thyroidectomy follow-up

Specialty: Endocrinology

Required Elements

  • Procedure date
  • Current TSH levels
  • Symptoms post-surgery

Example Documentation

6-month post total thyroidectomy for papillary carcinoma. TSH 30.1 mIU/L on 75mcg levothyroxine. No residual thyroid tissue on ultrasound. Diagnosis: Postprocedural hypothyroidism (E89.0).

Examples: Poor vs. Good Documentation

Poor Documentation Example
Hypothyroidism after surgery.
Good Documentation Example
Post-thyroidectomy hypothyroidism with TSH 30.1 mIU/L. No residual thyroid tissue.
Explanation
The good example specifies the procedure and current thyroid status.

Need help with ICD-10 coding for Hypothyroid Disease? Ask your questions below.

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