QuestAssureD 25-Hydroxy and 1,25-Dihydroxyvitamin D, LC/MS/MSMain Content
Test Code: 16761
CPT Code(s): 82306, 82652
Includes: 92888 QuestAssureD™ 25-Hydroxyvitamin D (D2, D3), LC/MS/MS and 16558 Vitamin D, 1,25-Dihydroxy, LC/MS/MS
Methodology: Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Clinical Significance: Vitamin D originating from dietary and endogenous sources is converted to 25-hydroxyvitamin D in the liver, and subsequently to 1, 25-dihydroxyvitamin D in the kidney. Measurement of both the 1, 25-Dihydroxy and 25-Hydroxy forms provide insights into a variety of medical conditions such Vitamin D status in renal failure, differential diagnosis of primary, secondary and tertiary hyperparathyroidism. Differential diagnosis of hypercalcemia and type I and II inherited rickets.
Additional names: N/A
Supply: T05 - Red Top Tube (NO GEL) 10mL
Preferred Specimen: Serum
Preferred Volume: 1.5mL
Transport Container: Red Top Tube (NO GEL)
Transport Temperature: Room Temperature
Special Instructions: Fasting preferred, but not required. Collect blood in a standard red-top serum vacutainer® tube. Allow blood to clot at room temperature. Centrifuge and separate the serum from the cells immediately.
Specimen Stability: Room Temperature: 21 days
Reject due: Gross hemolysis, lipemia, icteris; Plasma; Serum not serparted from clot within 48 hours; Heparinized or EDTA Plasma
For additional supply or collection device information, please contact DLO's Customer Service at (800) 891-2917, option 2.
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 payor being billed.