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Test Compendium


Test Code

  • 6955

Test Synonym

  • 21-Hydroxylase Antibodies, Adrenal 21-Hydroxylase Ab, Serum

Minimum Volume

  • 1 mL

Specimen Requirements

  • Serum Or Plasma


  • Serum Separator Tube, Plain Red Top Tube, Lavender Top Tube, Transfer Tube- Serum, Transfer Tube- Plasma, Transfer Tube- Frozen- Serum, Transfer Tube- Frozen- Plasma


  • Frozen

CPT Codes

  • 83519
    *The CPT codes provided are based on AMA guidelines and are provided for informational purposes only. CPT coding is the responsibility of the billing entity. Please direct any questions regarding the CPT coding to the payer being billed.

Special Instructions

  • 1mL SERUM OR EDTA PLASMA SHIP FROZEN( stable 24 hrs RT or refrigerated)

Additional Information

  • FROZEN Serum from Red-top tube, SST(gel-barrier tube) or plasma from lavender-top (EDTA)tube Separate serum or plasma from cells within 1 hour. Transfer to a plastic transport tube before freezing. To avoid delays in turnaround time when requesting multiple test on frozen samples, PLEASE SUBMIT SEPARATE FROZEN SPECIMENS FOR EACH TEST REQUESTED.

Specimen Stability

  • AMBIENT: 24 hrs REFRIGERATED: 24 hrs FROZEN: 200 days