CA 125

Test Code

29256

CPT Codes
86304

Preferred Specimen

1 mL serum

Minimum Volume

0.5 mL

Transport Container

Transport tube

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days

Methodology
Immunoassay (IA)

Setup Schedule

Mon-Fri

Report Available

4 days

Limitations

CA 125 is not intended as a screening test. CA 125 is affected by menstrual cycle, ectopic endometrial tissue.

Reference Range

<35 U/mL

Clinical Significance

The CA 125 level can provide prognostic information in the follow-up management of patients with ovarian carcinoma. The assay should be used as an adjunctive test in the management of ovarian cancer patients. CA 125 is not recommended as a cancer screening procedure to detect cancer in the general population.

Performing Laboratory

Quest Diagnostics-Seattle

1737 Airport Way S Suite 200

Seattle, WA 98134-1636

Last Updated: November 6, 2024

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.