CPT® code 84443 is used to report a laboratory test measuring thyroid-stimulating hormone (TSH) in the blood. TSH testing is critical for evaluating thyroid function and is commonly used to diagnose hypothyroidism, hyperthyroidism, and monitor thyroid hormone replacement therapy.
When to Use CPT® Code 84443
- When ordering a TSH blood test to assess thyroid function.
- For patients presenting with symptoms of thyroid dysfunction such as fatigue, weight changes, or temperature intolerance.
- To monitor patients on thyroid hormone replacement therapy or antithyroid medications.
- As part of routine screening in patients at risk for thyroid disease, such as those with a family history or autoimmune conditions.
Billing Requirements
- Report per test performed.
- Documentation must indicate medical necessity, such as symptoms, monitoring, or screening purposes.
- Often paired with other thyroid function tests (e.g., free T4) but billed separately.
- Ensure appropriate ICD-10 codes are included for coverage.
Common Clinical Scenarios
- A primary care provider orders a TSH test to evaluate fatigue and unexplained weight gain.
- An endocrinologist monitors a patient with hypothyroidism on levothyroxine therapy.
- A wellness visit includes a TSH test for a patient with a family history of thyroid disease.
Streamline Thyroid Testing Documentation with OptiMantra
Accurate coding and documentation for CPT® 84443 are essential to ensure compliance and proper reimbursement. OptiMantra’s EMR and practice management system allows providers to seamlessly order TSH tests, link results to patient charts, and generate clean claims. For endocrinology, primary care, and integrative clinics, OptiMantra streamlines laboratory workflows, reduces administrative burdens, and allows providers to focus on high-quality patient care.
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