What is the ICD-10 code for high TSH?

The ICD-10 code for high TSH, when unspecified, is E03.9. If due to autoimmune thyroiditis, use E06.3, and for post-surgical causes, use E89.0.

How is high TSH documented?

Document high TSH with specific lab values, clinical context, and any known etiology such as autoimmune or post-surgical causes.

ICD-10 Coding for High Thyroid Stimulating Hormone(E03.9, E03.0, E06.0)

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Learn about the ICD-10 coding for high thyroid stimulating hormone, including documentation requirements and common pitfalls.

Also known as:

Elevated TSHSubclinical Hypothyroidism

Related ICD-10 Code Ranges

Complete code families applicable to High Thyroid Stimulating Hormone

E00-E89Primary Range

Endocrine, nutritional and metabolic diseases

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Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

Code	Description	When to Use	Key Documentation
E03.9	Hypothyroidism, unspecified	Use when TSH is elevated but no specific cause is documented.	TSH >4.5 µIU/mL on 2+ tests Normal free T4 levels Absence of specific etiology
E06.3	Autoimmune thyroiditis	Use when autoimmune thyroiditis is confirmed by lab tests and clinical findings.	Positive TPO antibodies Lymphocytic infiltration on biopsy
E89.0	Postprocedural hypothyroidism	Use when hypothyroidism follows surgical or ablative treatment.	History of thyroidectomy or RAI Elevated TSH post-procedure

Primary ICD-10-CM Codes

Hypothyroidism, unspecified

E03.9Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Autoimmune thyroiditisE06.3

Use when TPO antibodies are positive and there is evidence of autoimmune thyroiditis.

Hypothyroidism, unspecifiedE03.9

Documentation & Coding Risks

Avoid these common issues when documenting High Thyroid Stimulating Hormone.

Failing to document TPO antibody results

Impact

Clinical: May lead to misdiagnosis of hypothyroidism type., Regulatory: Non-compliance with documentation standards., Financial: Potential for claim denial or reduced reimbursement.

Mitigation

Ensure TPO antibody tests are ordered and results documented., Educate providers on importance of complete documentation.

Using E03.9 for post-thyroidectomy cases

Impact

Reimbursement: Incorrect coding may lead to denied claims., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate data on hypothyroidism etiology.

Mitigation

Use E89.0 with Z90.1 to specify post-surgical cause.

Coding R94.6 without provider diagnosis

Impact

Reimbursement: Potential for claim denial due to lack of specificity., Compliance: Violates coding rules requiring provider confirmation., Data Quality: Leads to incomplete clinical data.

Mitigation

Query provider for confirmation of hypothyroidism.

Use of unspecified codes

Impact

Frequent use of E03.9 without documented etiology.

Mitigation

Encourage detailed documentation of hypothyroidism causes.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with E03.9.

Primary Code

E03.9

Hypothyroidism, unspecified

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ICD-10 codes7

Coding risks4

FAQs2

ICD-10 Coding for High Thyroid Stimulating Hormone(E03.9, E03.0, E06.0)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for high TSH?

How is high TSH documented?

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