MAGAB – “MAG Autoantibody” replaced by MAGME – “Myelin-Associated Glycoprotein (MAG) Ab, IgM, EIA”

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Inactivated/Replace Test

Effective Date

07/01/2025

Included in Report

WML Test Directory Update | July 2025

Replacement Test

MYELIN-ASSOCIATED GLYCOPROTEIN (MAG) Ab, IgM, EIA

Inactivated Test Details

Mnemonic

MAGAB

Ordering Code

3504670

CPT-4 Codes(s)

84181, plus 83520 x 2 if reflexed, at additional cost

Replacement Test Details

Mnemonic

MAGME

Ordering Code

3401069

CPT-4 Codes(s)

83520

Turnaround Time
5 - 9 days
Performed
Monday, Thursday
Legacy Code
3401069
Example Report
Download

Specimen Information

Collect

Serum separator tube (SST)

Specimen Preparation

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

Alternate Specimen

Serum: Red top

Minimum Volume

0.2 mL

Transport Temperature

Refrigerated (cold packs)

Rejection Criteria

Sample received room temperature

Stability

Room temperature: 48 hours
Refrigerated: 7 days
Frozen: 30 days

Methodology

Enzyme Immunoassay
more

Reference Range

Normal <1:1600
Moderately Elevated 1:1600-1:3200
Highly Elevated ≥1:6400
more

Performing Laboratory

Quest
more

New York DOH Approval Status

Yes
more

Interface Map for MAGME

Test Name Ordering Code Result Code Component Name LOINC Code AOE Prompt Units
Myelin-Associated Glycoprotein (MAG) Ab, IgM, EIA3401069
3401069 Myelin-Associated Glycoprotein (MAG) Ab, IgM, EIA39087-2No

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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