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Home/Diagnosis/ICD-10 Coding for Abnormal Thyroid Lab

ICD-10 Coding for Abnormal Thyroid Lab

R94.6
E03.9

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

Also Known as:
Abnormal Thyroid Function Tests
Thyroid Lab Abnormalities
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Key Information: ICD-10 Coding for Abnormal Thyroid Lab

Essential facts and insights about ICD-10 Coding for Abnormal Thyroid Lab

Use ICD-10 code R94.6 for abnormal results of thyroid function studies, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Abnormal results of thyroid function studies

Billable Code
R94.6
Billable

Diagnostic Criteria

clinical:
  • • Abnormal TSH or T4 without a specific thyroid disorder diagnosis
coding:
  • • Avoid using R94.6 as primary if E03.x or E05.x is applicable

Applicable To

  • • Abnormal TSH
  • • Abnormal T4

Important Notes

  • • R94.6 should not be used as a primary diagnosis if a specific thyroid disorder is identified.

Hypothyroidism, unspecified

Billable Code
E03.9
Billable

Diagnostic Criteria

clinical:
  • • Elevated TSH >5 mIU/L
  • • Low free T4

Applicable To

  • • Primary hypothyroidism

Important Notes

  • • Ensure lab results confirm hypothyroidism before coding.
Ancillary Codes

Additional codes that may be used with this diagnosis

Z13.29

Encounter for screening for other suspected endocrine disorder

Use for routine screening when no symptoms are present.

Frequently Asked Questions

What is the ICD-10 code for abnormal thyroid labs?

The ICD-10 code for abnormal thyroid labs is R94.6, used when thyroid function tests are abnormal but no specific disorder is diagnosed.

When should R94.6 be used?

Use R94.6 when thyroid function tests show abnormal results but no specific thyroid disorder is confirmed.

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