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Test Name

QuestAssureD™ 25-Hydroxyvitamin D (D2, D3), LC/MS/MS

To view specimen requirements and codes please Select a regional laboratory.

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CPT Code(s)**

82306
**IMPORTANT: CPT Code is informational only; obtain the Test Code for ordering.

Includes

Vitamin D, 25-OH, Total; Vitamin D, 25-OH, D3; Vitamin D, 25-OH, D2

Methodology

Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)

Reference Range(s)

Vitamin D, 25-OH, Total 30-100 ng/mL
Vitamin D, 25-OH, D3 Not established
Vitamin D, 25-OH, D2 Not established

Clinical Significance

Measurement of serum 25-OH vitamin D concentrations provide a good index of circulating vitamin D activity in patients not suffering from renal disease. Lower than normal 25-OH vitamin D levels can result from a dietary deficiency, poor absorption of the vitamin or impaired metabolism of the sterol in the liver. A 25-OH vitamin D deficiency can lead to bone diseases such as rickets and osteomalacia. Above normal levels can lead to hypercalcemia. This assay employs liquid chromatography tandem mass spectrometry to independently measure and report the two common forms of 25-hydroxy vitamin D: 25-OH D3 - the endogenous form of the vitamin and 25-OH D2 - the analog form used to treat 25-OH Vitamin D3 deficiency.

Test FAQ

Vitamin D Testing

Alternative Name(s)

Vitamin D2, 25-hydroxy,25-Hydroxyergocalciferol (25OHD2),Vitamin D3, 25-hydroxy,D2 Vitamin,25-Hydroxyvitamin D3,25-OH-D3,25-Hydroxycholecalciferol (25OHD3),Vit D, LC/MS/MS,25-OH-D2,D3 Vitamin,25-Hydroxyvitamin D2

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.

* 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.

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QuestAssureD™ 25-Hydroxyvitamin D (D2, D3), LC/MS/MS
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