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Test Compendium


Test Code

  • 6606

Test Synonym

  • N-Telopeptide (NTx), Serum

Minimum Volume

  • 0.5 mL

Specimen Requirements

  • Serum


  • Serum Separator Tube, Plain Red Top Tube


  • Refrigerated

CPT Codes

  • 82523
    *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

  • Serum must be transferred to a plastic transport tube. Serum must be separated from red cells or gel barrier immediately after clot formation and centrifugation.

Additional Information

  • For monitoring therapy, baseline specimens should be collected just prior to or on the day of therapy initiation. Subsequent specimens for comparison should be collected at approximately the same time of day as the baseline specimen.