Days Set Up
Daily, 24 hours
Analytic Time

4 hours

MiChart Code
CA 19-9 (Carbohydrate Antigen 19-9)
Soft Order Code
CA199

Test Updated:

Synonyms

Cancer Antigen 19-9
Carbohydrate Antigen 19-9
CA19-9

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Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

Learn about how to properly label and where to ship specimens.

Order Kits and Supplies

MLabs provides all the supplies necessary for the collection of specimens.

Test FAQ

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Test Overview

Test Methodology

Chemiluminescent Immunoassay

Test Usage

Potentially useful adjunct for diagnosis and monitoring pancreatic cancer; Maybe used for differentiating patients with cholangiocarcinoma and primary sclerosing cholangitis (PSC) from those with PSC alone.

Reference Range

<40 U/mL. Serum markers are not specific for malignancy, and values may vary by method.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Specimen Requirements

Offsite Collection Instructions

Collect blood in a red top or SST tube. Centrifuge, aliquot serum into plastic vial and refrigerate.

Yellow Top Tube
Normal Volume
0.5 mL serum
Minimum Volume
0.25 mL serum

Billing Information

CPT Code
86301
Pro Fee Code
 
Insurance Auth Info
 
LOINC
2009-9

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Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.