SELS – “Selenium” replaced by SELP – “Selenium, Serum/Plasma”

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Inactivated/Replace Test

Effective Date

10/21/2025

Included in Report

WML Test Directory Update Heavy Metal Update | October 2025

Replacement Test

SELENIUM, SERUM/PLASMA

Inactivated Test

SELENIUM

Inactivated Test Details

Mnemonic

SELS

Ordering Code

3706520

CPT-4 Codes(s)

84255

Replacement Test Details

Mnemonic

SELP

Ordering Code

3000421

CPT-4 Codes(s)

84255

Turnaround Time
2 - 5 days
Performed
Monday - Friday
Legacy Code
SELP
Example Report
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Specimen Information

Collect

Dark blue trace element no additive

Specimen Preparation

Centrifuge, separate serum from cells within 2 hours by carefully pouring 2.0 mL serum into a screw capped plastic vial. Do not pipette serum or plasma. Do not ream with wooden stick.

Alternate Specimen

Plasma: Dark blue trace element EDTA

Minimum Volume

1.0 mL

Transport Temperature

Refrigerated

Rejection Criteria

Gross hemolysis, Gel barrier tubes, serum or plasma not separated from cells within 2 hours.

Stability

Room temperature: 7 days
Refrigerated: 14 days
Frozen: 30 days

Methodology

Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)
more

Reference Range

5.0 - 16.0 μg/dL
more

Performing Laboratory

Warde Medical Laboratory
more

New York DOH Approval Status

No
more

Interface Map for SELP

Test Name Ordering Code Result Code Component Name LOINC Code AOE Prompt Units
Selenium, Serum/Plasma 3000421
3000421 Selenium, Serum/Plasma5724-0 No

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.

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