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Test Compendium


Test Code

  • 3817

Test Synonym

  • HLA Typing for Narcolepsy


  • 7 mL or four buccal swabs

Minimum Volume

  • 3 mL or four buccal swabs

Specimen Requirements

  • Whole Blood Or Buccal Swabs


  • Lavender Top Tube, Buccal Swab


  • Ambient

Turn Around Time

  • 7 days

CPT Codes

  • 81383
    *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

  • Lavender-top (EDTA) tube or 4 to 7 buccal swabs in a sealed envelope (buccal swab kit)

Additional Information

  • Lavender-top (EDTA) tube or four buccal swabs in a sealed envelope (buccal swab kit). If submitting buccal swabs, please use the kit provided by Enzo. To obtain the buccal swab kit or to discuss other specimen types, please telephone 800-522-5052.

Specimen Stability

  • Maintain specimen at room temperature. Protect from extreme heat or cold