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Test Information

IGF-I, LC/MS (9163)

CPT Code(s):


Preferred Specimen(s):

Serum (Gel Barrier) 0.5 mL serum from a serum separator tube (SST). (0.5 mL min) Allow blood to clot (10-15 minutes) at room temperature. Centrifuge and separate serum into plastic transport vial and refrigerate.


Ambient: 48 Hours Refrigerated: 5 Days Frozen: 7 Days -70 degrees: 21 Days


Liquid Chromatography/Mass Spectrometry (LC/MS)

Transport Temperature:


Transport Container:

Serum Separator Tube

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.

*Requests for germline genetic tests require either a copy of a specific patient consent form to be submitted with the testing request, or a blanket attestation from the physician that acknowledges their compliance with the informed consent law. As a convenience, we offer a blanket attestation for you to sign acknowledging that you are in compliance with this informed consent law. This form, as well a sample consent form that you can customize for your practice, can be downloaded here.