Titin Autoantibody Test

Test Code

Test Details

Test code: 1480
Type of disorder: Neuromuscular Disorders
Disease(s) tested for: Myasthenia Gravis (MG)

Technical Information

Clinical Significance: Anti-titin antibody is a striational antibody that is associated with myasthenia gravis with an older age of onset (approximately >60 years).  Anti-titin antibodies are detected in patients with thymoma associated-MG.
Methodology: ELISA
Reference Range: Negative <0.1 NU

CPT Coding

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

CPT: 83520

Specimen Requirements

Please label each specimen tube with two forms of patient identification. These forms of identification must also appear on the requisition form.

Specimen Type: Serum
Specimen Stability: Room temperature: 72 hours, Refrigerated: 60 days, Frozen: 11 months
Specimen Requirements: 2 mL (0.5 mL minimum) serum in a Red-top tube or Serum Separator Tube (SST)
Instructions: Serum must be separated from whole blood within 48 hours of collection.

Shipping Considerations

Transport Temperature: Refrigerated
Set-up/Analytic Time: 7-14 days

Additional Resources

Letters of Medical Necessity

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