TESF – “Free Testosterone” replaced by TESB – “Testosterone, Free, Bioavailable and Total, MS”

Back to Test Updates

Inactivated/Replace Test

Effective Date

07/29/2025

Included in Report

WML Test Directory Update | July 2025

Replacement Test

TESTOSTERONE, FREE, BIOAVAILABLE AND TOTAL, MS

Inactivated Test Details

Mnemonic

TESF

Ordering Code

1000822

CPT-4 Codes(s)

84402

Replacement Test Details

Mnemonic

TESB

Ordering Code

3000403

CPT-4 Codes(s)

84403, 84270, 82040

Turnaround Time
3 - 6 days
Performed
Monday - Friday
Legacy Code
TESB
Example Report - Female
Download
Example Report - Male
Download

Specimen Information

Testosterone, Free, Bioavailable and Total, MS Reference Ranges

Collect

Red top

Specimen Preparation

Centrifuge, separate serum from cells and send 3.0 mL serum in a screw capped plastic vial.

Minimum Volume

2.0 mL

Transport Temperature

Refrigerated

Rejection Criteria

Samples other than serum from plain red top collection tubes, serum separator tubes (SST), plasma samples, lipemic samples, hemolyzed samples, and samples received past stability.

Stability

Room temperature: 8 hours
Refrigerated: 7 days
Frozen: 2 months

Methodology

Liquid Chromatography - Tandem Mass Spectrometry (LC/MS/MS), Calculation, Nephelometry,
Immunochemiluminescent Assay
more

Reference Range

See report
more

Performing Laboratory

Warde Medical Laboratory
more

New York DOH Approval Status

No
more

Interface Map for TESB

Test Name Ordering Code Result Code Component Name LOINC Code AOE Prompt Units
Testosterone, Free, Bioavailable and Total, MS3000403
3000169 Testosterone, Total, LC/MS/MS2986-8No
3000404Testosterone, Free2991-8No
3000406Testosterone, Bioavail 2990-0No
3000391Sex Hormone Binding Globulin13967-5No
3000407Albumin1751-7No

The CPT codes provided are for general informational purposes only and are based on an interpretation of AMA guidance. It is the sole responsibility of the billing party to determine CPT codes. Any questions regarding coding should be directed to the paying party.

Need Help?

We can help you find the right test or let you know if we have a fulfillment partner.

Contact Us