MUSKE – “Muscle-Specific Kinase (MuSK) Antibody, IgG” replaced by MUSKG – “MuSK Ab, IgG by CBA-IFA wReflex to Titer, Serum”

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Inactivated/Replace Test

Effective Date

08/22/2023

Included in Report

WML Test Directory Update | August 2023

Replacement Test

MuSK Ab, IgG by CBA-IFA with REFLEX to TITER, SERUM

Inactivated Test Details

Mnemonic

MUSKE

Ordering Code

3600115

CPT-4 Codes(s)

86255, plus 86256 if reflexed, at an additional fee

Replacement Test Details

Mnemonic

MUSKG

Ordering Code

3600291

CPT-4 Codes(s)

86366, plus 86256 if reflexed to titer, at an additional fee

Turnaround Time
3 - 8 days
Performed
Monday, Wednesday, Friday
Legacy Code
MUSKG
Not Detected Example Report
Download
Detected Example Report
Download

Specimen Information

Collect

Serum separator tube (SST)

Specimen Preparation

Centrifuge, separate serum from cells within 2 hours of collection and send 2.0 mL serum in a screw capped plastic vial.

Alternate Specimen

Red top

Minimum Volume

0.5 mL

Transport Temperature

Refrigerated

Rejection Criteria

Grossly lipemic, icteric or hemolyzed specimens

Stability

Room temperature: 48 hours
Refrigerated: 14 days
Frozen: 1 month

Methodology

Semi-quantitative Cell-Based Indirect Fluorescent Antibody
more

Reference Range

<1:10
more

Performing Laboratory

ARUP
more

Interface Map for MUSKG

Test Name Ordering Code Result Code Component Name LOINC Code AOE Prompt Units
MuSK Ab, IgG by CBA-IFA wReflex to Titer, Serum3600291
3600292MuSK Ab IgG CBA IFA Screen, Serum38362-0No
3600293MuSK Ab IgG CBA IFA Titer, Serum51763-1No

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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