CA 19-9, SERUM

Test Code C199C 
Test CA 19-9, SERUM 
Methodology Electrochemiluminecent Assay (ECLIA) 
Description Useful as a potential adjunct for diagnosis and for monitoring of pancreatic cancer.

No sample should be collected on patients receiving therapy with high biotin doses(i.e. biotin therapy for Multiple Sclerosis or oncology patients; skin, hair and nail supplements, or multivitamins containing > 5 mg/day) until at least 12 hours after the last biotin administration. If unsure, or if the clinical picture does not fit the results please contact the laboratory . We have methods to check for biotin interference as well as for any other interferences and for the accuracy of the results.

Biotin interference would falsely decrease the result of this assay.

NOTE: This test, when ordered on Medicare patients, is subject to the National Coverage Determination (NCD) policy "Tumor Antigen by Immunoassay CA 19-9". Please verify that the diagnosis code (ICD-9) you have chosen demonstrates medical necessity for the test as documented in the physician's patient record. The CMS web site or the NorDx Limited Coverage Documentation Guide are available to assist you with this verification. A properly executed Advance Beneficiary Notice (ABN) must be submitted with the specimen if medical necessity is not demonstrated by the ICD-9 code chosen. 

Specimen Draw blood in either a plain, red-top tube or serum gel tube. Spin down and send 1.0 mL (minimum: 0.5 mL) of serum refrigerated in a screw-capped, plastic vial. 
Reference Values 0.0 - 35.0 U/mL 
Analytic Time 1 Day 
Day(s) Test Set Up Sunday through Saturday 
CPT Code(s) 86301