| Test code | Test name | Clinical description |
|---|---|---|
| E411 | Calcitonin | Diagnosis of medullary thyroid cancer and post-surgical recurrence monitoring |
| C408 | Carcinoembryonic Ag (CEA) | May be elevated in some medullary thyroid cancers |
| S431 | Thyroglobulin | Used for post-surgical recurrence monitoring of thyroid cancer |
| S432 | Thyroglobulin Antibody | Supportive indicator for interpretation of thyroglobulin test |