Test and ICD Codes – Current as of 15 December, 2021
These test and ICD codes can be helpful if your tests are being ordered by a primary care provider or an endocrinologist who does not specialize with thyroid cancer patients.
Lab Corp
https://www.labcorp.com/test-menu/search
| Order Code | Order Code Name | Result Code | Result Code Name | Units | ||
| 224576 | TSH+Free T4 | 4264 19745 | TSH T4,Free(Direct) | uIU/mL ng/dL | ||
| 10389 | Triiodothyronine (T3), Free | 10389 | Triiodothyronine (T3), Free | pg/mL | ||
| 42045 | TgAb+Thyroglobulin,IMA or LCMS | 6706 166013 | Thyroglobulin Antibody Thyroglobulin Storage | IU/mL | ||
| 2139 | CEA | 2169 | CEA | ng/mL | ||
| 4895 | Calcitonin, Serum | 4896 | Calcitonin, Serum | pg/mL |
Quest Diagnostics
https://testdirectory.questdiagnostics.com/test/home
| Test Code | Name | CPT Code | Description | Units | |
| 899 | TSH | 84443 | Thyroid Stimulating Hormone | mIU/L | |
| 866 | T4 Free (FT4) | 84439 | Thyroxine, free | ng/dL | |
| 34429 | T3, Free | 84481 | Triiodothyronine T3; free | pg/mL | |
| 90814 | Thyroid Cancer Monitor (Thyroglobulin) | 86800 | Thyroglobulin Antibody | ≤1 IU/mL | |
| Similar to LabCorp 42045 | Thyroglobulin | Athyrotic: <0.1 ng/mL | |||
| Thyroglobulin, LC/MS/MS | Athyrotic: <0.4 ng/mL | ||||
| 307422 | Calcitonin | 82308 | Calcitonin | Goal is none; monitor for doubling time | |
| 978 | CEA | 82378 | Carcinoembrionic Antigen | Goal is none |
Tests which are not helpfuL
TPO – thyroid peroxidase antibodies (used to diagnose Hashimoto’s)
Thyroid Panel or Profile – often includes T3 uptake, total T4 or T3, or free T4 index, none of which are helpful for thyroid cancer patients.
TSH with reflex – if TSH is within the lab reference range, free T4 will not be run.
Always get a copy and check your lab order for the correct tests and diagnostic codes.
ICD-10 CODES FOR THYROID CANCER MONITORING TESTS
ICD-10 Code: C73 (C73)
Code Type: Diagnosis
Description: Malignant neoplasm of thyroid gland
ICD-10 Code: E890 (E89.0)
Code Type: Diagnosis
Description: Postprocedural hypothyroidism
There are no specific ICD-10 codes for Medullary ThyCa (CEA and Calcitonin tests)
http://www.hipaaspace.com/Medical_Billing/Coding/International_Classification_Of_Diseases/ICD10_Codes_Lookup.aspx
Thyroid Cancer Advocates 