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21-Hydroxylase Antibody

Test Code

177816P

CPT Code(s)

83519

Preferred Specimen(s)

1 mL serum

Minimum Volume

0.5 mL

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 7 days
Refrigerated: 14 days
Frozen: 28 days

Reject Criteria

Gross hemolysis • Gross lipemia • Grossly icteric

Methodology

Radiobinding Assay (RBA)

Performing Laboratory

Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano, CA 92690-6130

Setup Schedule

Set up: Tues; Report available: 4 days

Reference Range(s)

Negative

Clinical Significance

Diagnose Autoimmune Polyglandular Syndrome (APS), Type 1 or 2. Diagnose Addison's disease.

LOINC®' Code(s)

The Result and LOINC information listed below should not be used for electronic interface maintenance with Quest Diagnostics. Please contact the Quest Diagnostics Connectivity Help Desk for more information at 800-697-9302.

NOTE: The codes listed in the table below are not orderable Test Codes.

Result
Code
Result NameLOINC CodeComponent Name
668421-Hydroxylase Antibody17781-621-Hydroxylase Ab

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided 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 payer being billed.

LOINC assignment is based on a combination of test attributes, including the method used by the performing laboratory. For tests not performed by Quest Diagnostics, codes are assigned by the performing laboratory.

* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.