Serum Testing
Codes: 4259, 8020, 4258, 8021, 8022
Codes: 4259, 8020, 4258, 8021, 8022
Thyroid Serum Profiles
Thyroid hormones influence energy, metabolism, mood, and reproductive health. Our serum-based thyroid tests help providers assess thyroid output, conversion, and autoimmune activity with clear, clinician-ready reports.
- Serum-based
- Actionable biomarkers
- Autoimmune screening
- Clinician-ready report
CPT Codes
Tap “View CPTs” below
Panels
Complete, Basic, Evaluation, Metabolic, Mini
Sample
Serum
FSA/HSA
Eligible
Markers tested (by category)
Thyroid Hormones (6)
TSH, Total T3/T4, Free T3/T4, rT3
Thyroid Hormones (6)
TSH, Total T3/T4, Free T3/T4, rT3
- TSH (Thyroid Stimulating Hormone)
- Total T3 (T3)
- Total T4 (T4)
- Free T3
- Free T4
- Reverse T3 (rT3)
Thyroid Antibodies (2)
TPO Ab, Thyroglobulin Ab
Thyroid Antibodies (2)
TPO Ab, Thyroglobulin Ab
- Thyroid Peroxidase (TPO) Antibodies
- Thyroglobulin Antibodies
View CPT Codes
84443
84480
84436
84481
84439
84482
86376
86800
84480
84436
84481
84439
84482
86376
86800
CLIA-certified laboratory
Why Check Thyroid Function?
Thyroid dysfunction can be subtle but significant. Fatigue, mood swings, weight
changes, cold sensitivity, and irregular cycles may reflect an imbalance in
thyroid hormone activity. Testing helps catch issues early and support long-term health.
What’s Included?
Depending on the panel, results may include:
- TSH, Total T3, Total T4
- Free T3, Free T4, Reverse T3
- TPO Antibodies, Thyroglobulin Antibodies
These biomarkers assess thyroid output, conversion, and autoimmune involvement.
Types of Thyroid Tests Offered
- Thyroid Complete Panel (4259) — broadest coverage
- Basic Thyroid Panel (8020) — foundational hormones
- Thyroid Evaluation Panel (4258) — evaluation-focused set
- Metabolic Thyroid Panel (8021) — metabolism-oriented view
- Mini Thyroid Panel (8022) — targeted screen
Related Testing Options
Neutrophilic Segmentation Profile
