HYDRS – “Hydroxyzine and Metabolite, Serum/Plasma” replaced by HYDSP – “Hydroxyzine and Metabolites, Serum/Plasma”

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Inactivated/Replace Test

Effective Date

02/02/2026

Included in Report

WML Test Directory Update | February 2026

Replacement Test

Hydroxyzine and Metabolites, Serum/Plasma

Inactivated Test Details

Mnemonic

HYDRS

Ordering Code

3302300

CPT-4 Codes(s)

80375 (G0480)

Replacement Test Details

Mnemonic

HYDSP

Ordering Code

3300406

CPT-4 Codes(s)

80375 (G0480)

Turnaround Time
5 - 7 days
Performed
Varies
Legacy Code
HYDSP
Example Report
Download

Specimen Information

Collect

Red top

Specimen Preparation

Centrifuge, separate serum from cells and send 1.0 mL serum in a screw capped plastic vial.

Alternate Specimen

Plasma: EDTA

Minimum Volume

0.4 mL

Transport Temperature

Refrigerated

Rejection Criteria

Serum separator tube (SST), Plasma separator tube (PST)

Stability

Room temperature: 30 days
Refrigerated: 30 days
Frozen (-20°C): 30 days

Methodology

High Performance LIquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS)
more

Reference Range

See report
more

Performing Laboratory

NMS Labs
more

New York DOH Approval Status

Yes
more

Interface Map for HYDSP

Test Name Ordering Code Result Code Component Name LOINC Code AOE Prompt Units
Hydroxyzine and Metabolites, Serum/Plasma3300406
3302310Hydroxyzine3686-3No
3302320CetirizineNo
3300404Norchlorcyclizine 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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