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Home/Diagnosis/ICD-10 Coding for Hypothyroidism

ICD-10 Coding for Hypothyroidism

E03.9
E03.8

Complete ICD-10-CM coding and documentation guide for icd-10 coding for hypothyroidism includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Underactive thyroid
Low thyroid function
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Key Information: ICD-10 Coding for Hypothyroidism

Essential facts and insights about ICD-10 Coding for Hypothyroidism

Use ICD-10 code E03.9 for hypothyroidism, unspecified, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Hypothyroidism, unspecified

Billable Code
E03.9
Billable

Diagnostic Criteria

clinical_criteria:
  • • High TSH and low T4 without a specified cause.

Applicable To

  • • Unspecified hypothyroidism

Important Notes

  • • Ensure documentation supports the use of an unspecified code.

Other specified hypothyroidism

Billable Code
E03.8
Billable

Diagnostic Criteria

clinical_criteria:
  • • High TSH levels
  • • Low T4 levels
  • • Documented cause such as autoimmune thyroiditis

Applicable To

  • • Hypothyroidism due to autoimmune thyroiditis

Important Notes

  • • Document the specific cause of hypothyroidism.
Ancillary Codes

Additional codes that may be used with this diagnosis

Z79.899

Long-term (current) use of other medications

Use when documenting long-term thyroid hormone replacement therapy.

Frequently Asked Questions

What is the ICD-10 code for hypothyroidism?

The ICD-10 code for unspecified hypothyroidism is E03.9. Use E03.8 for hypothyroidism with a specified cause, such as autoimmune thyroiditis.

How do you code hypothyroidism due to Hashimoto's?

Code E06.3 for Hashimoto's thyroiditis and E03.8 for hypothyroidism due to autoimmune thyroiditis.

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