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Home/Diagnosis/ICD-10 Coding for Abnormal Thyroid Function Test

ICD-10 Coding for Abnormal Thyroid Function Test

R94.6
E03.9

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

Also Known as:
Abnormal TFT
Thyroid Function Test Abnormality
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Key Information: ICD-10 Coding for Abnormal Thyroid Function Test

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

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_criteria:
  • • Abnormal TSH or T4 levels without a specific diagnosis.
coding_criteria:
  • • No specific thyroid disorder code applicable.

Applicable To

  • • Abnormal TSH
  • • Abnormal T4
  • • Abnormal T3

Important Notes

  • • R94.6 should not be used if a specific thyroid disorder is diagnosed.

Hypothyroidism, unspecified

Billable Code
E03.9
Billable

Diagnostic Criteria

clinical_validation_requirements:
  • • TSH >4.5 mIU/L
  • • Free T4 <0.8 ng/dL

Applicable To

  • • Primary hypothyroidism

Important Notes

  • • Ensure hypothyroidism is confirmed before using E03.9.
Ancillary Codes

Additional codes that may be used with this diagnosis

R53.83

Other fatigue

Use to document symptoms like fatigue associated with abnormal TFTs.

Frequently Asked Questions

What is the ICD-10 code for abnormal thyroid function test?

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

When should R94.6 not be used?

R94.6 should not be used when a specific thyroid disorder, such as hypothyroidism or hyperthyroidism, is diagnosed.

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