21- Hydroxylase Antibody

Test Code

21HDXY

Alias/See Also

39226

CPT Codes
83516

Preferred Specimen

0.5 mL serum

Minimum Volume

0.3 mL

Instructions

Transfer serum to a plastic transport vial and ship at room temperature.

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 5 days
Refrigerated: 14 days
Frozen: 60 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Gross hemolysis • Grossly icteric

Methodology
Enzyme Linked Immunosorbent Assay (ELISA)

Setup Schedule

Night Sets up 1 day a week.

Report Available

Reports in 4 to 11 days.

Reference Range

Negative

Clinical Significance

21-Hydroxylase Antibody is present in patients with autoimmune destruction of the adrenal glands, leading to Addison's disease. Antibody is also seen in autoimmune polyglandular syndrome.

Performing Laboratory
Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano, CA 92675-2042

Last Updated: May 16, 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.