Days Set Up
Monday, Wednesday, Saturday
Analytic Time

3 - 6 days

MiChart Code
11-Desoxycortisol, Mass Spec
Soft Order Code

Test Updated:


Compound S
Specific Compound S

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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

HPLC Tandem Mass Spectrometry

Test Usage
Reference Range

Premature (26 - 28w) Day 4: 110 - 1376 ng/dL, Premature (31 - 35w) Day 4: 48 - 579 ng/dL, Newborn Day 3: 13 - 147 ng/dL, 1 - 11m: <10 - 156 ng/dL, Prepubertal 8:00 AM: 20 - 155 ng/dL, Pubertal children and adults 8:00 AM: 12 - 158 ng/dL.

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

Specimen Requirements

Collection Instructions

Collect specimen in a red top or SST tube. Centrifuge, aliquot serum into a plastic vial within 1 hour of collection, and freeze. Morning (8 a.m.) specimens are recommended.

Yellow Top Tube
Red Top Tube
Normal Volume
1 mL serum
Minimum Volume
0.2 mL serum

Billing Information

CPT Code
Pro Fee Code
Insurance Auth Info

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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.