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Test Name

Vitamin D, 25-Hydroxy, Total, Immunoassay

CPT Code(s)

82306

Methodology

Immunoassay (IA)

Reference Range(s)

30-100 ng/mL

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

Test FAQ

Vitamin D Testing

Alternative Name(s)

25 OH Vitamin D,Vitamin D, 25-OH,25-Hydroxy Vitamin D,Vitamin D, 25-Hydroxy

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

Not sure which laboratory serves your office? Call us 866-MYQUEST (866-697-8378)

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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Vitamin D, 25-Hydroxy, Total, Immunoassay
17306