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Test Name

Vitamin B12 (Cobalamin)

CPT Code(s)

82607

Methodology

Immunoassay (IA)

Reference Range(s)

≤4 Years Not established
5-9 Years 250-1205 pg/mL
10-17 Years 260-935 pg/mL
>17 Years 200-1100 pg/mL

Clinical Significance

Vitamin B12 is decreased in pernicious anemia, total or partial gastrectomy, malabsorption and certain congenital and biochemical disorders.

Alternative Name(s)

Cobalamin,Cyanocobalamin,B12

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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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7610
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Vitamin B12 (Cobalamin)
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