Vitamin B12 (Cobalamin) | Test Detail

Vitamin B₁₂(Cobalamin)

Test Code

927

CPT Code(s)

82607

CPT Code is subject to a Medicare Limited Coverage Policy and may require a signed ABN when ordering.

Test Code

927

CPT Code(s)

82607

CPT Code is subject to a Medicare Limited Coverage Policy and may require a signed ABN when ordering.

Not offered in Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano. Please provide SERVICE AREA INFORMATION to find available tests you can order.

In-home collection may be available in your area for purchase through Quest Mobile.

Clinical Significance

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

Test Resources

Topic Brief

Laboratory Diagnosis of Peripheral Neuropathy

Test Details

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

Alternative Name(s)

Cobalamin, Cyanocobalamin

LOINC® Codes, Performing Laboratory

Service Area must be determined

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

Alternative Name(s)

Cobalamin, Cyanocobalamin

LOINC® Codes, Performing Laboratory

Service Area must be determined

Preferred Specimen(s)

1 mL serum

Alternative Specimen(s)

Amber vial

Minimum Volume

0.5 mL

Transport Container

Serum separator tube (SST)

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 7 days
Rrefrigerated: 7 days
Frozen: 28 days

Reject Criteria

Hemolysis

Setup Schedule

Service Area must be determined

Preferred Specimen(s)

1 mL serum

Alternative Specimen(s)

Amber vial

Minimum Volume

0.5 mL

Transport Container

Serum separator tube (SST)

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 7 days
Rrefrigerated: 7 days
Frozen: 28 days

Reject Criteria

Hemolysis

Setup Schedule

Service Area must be determined

Not offered in Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano. Please provide SERVICE AREA INFORMATION to find available tests you can order.

In-home collection may be available in your area for purchase through Quest Mobile.

Test Details

Clinical Significance

Test Resources

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 guidance 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.

This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.

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