Days Set Up
Monday - Friday
Analytic Time

2 - 4 days

MiChart Code
Oxycodone Level
Soft Order Code

Test Updated:


OxyContin, Serum or Plasma
Percocet, Serum or Plasma
Percodan, Serum or Plasma
Roxicodone, Serum or Plasma
Oxycodone, Serum/Plasma
Oxycodone, Serum/Plasma

Looking to order a test?

We’ve provided helpful links to make ordering easy.

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

Visit our provider FAQ and learn about common questions to ordering tests.

Test Overview

Test Methodology


Test Usage

Therapeutic drug monitoring.

Reference Range

10 - 120 ng/mL

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

Specimen Requirements

Collection Offsite

Collect specimen in a red top tube. Centrifuge, aliquot serum into a plastic vial and refrigerate. EDTA (lavender top) or heparinized (green top) plasma is also acceptable.

Red Top Tube
Normal Volume
5 mL serum
Minimum Volume
2.1 mL serum

Billing Information

CPT Code
Pro Fee Code

Have More Questions?

Explore our helpful billing resources:

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.