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Test Catalog
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NMO-IgG Autoantibody Test |
#193 |
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| Type of Disorder: |
Multiple Sclerosis |
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| Typical Presentation: |
Symptoms of NMO include optic neuritis, and transverse myelitis, weakness, sometimes paralysis of the arms and legs, in addition to sensory disturbances and loss of bowel and bladder control. |
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| Indications for Testing: |
Rule out NMO in patients with optic neuritis and transverse myelitis and distinguishing this disease from multiple sclerosis. |
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| Disease(s) tested for: |
Neuromyelitis Optica |
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| Test Details |
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| Test Code: |
193 |
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| Informed Consent Required: |
No |
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| Medicare ABN Required: |
No |
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| Special Notes: |
NMO-IgG antibodies are also present in patients with longitudinally extensive transverse myelitis (LETM) without optic neuritis, which is thought to be a precurser to NMO. |
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| Technical Information |
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| Utility: |
Confirm suspected cases of NMO and assist in making a differential diagnosis and identifying the cause of MS-like symptoms in the patient. An accurate diagnosis will further help predict disease course and provide direction in treatment options. |
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| Methodology: |
ELISA |
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| Reference Value: |
Positive: Presence of NMO autoantibodies |
| CPT Coding |
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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.
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| Stacked CPT Code(s): |
83520 |
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| Shipping Considerations |
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| Please label each specimen tube with two forms of patient identification. These forms of identification must also appear on the requisition form. |
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| Preferred Specimen Requirements |
| Type: |
Serum |
| Minimum Volume: |
2 mL |
| Collection Tube: |
Red top |
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| Storage Conditions: |
Refrigerate, avoid freezing |
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| Shipping Conditions: |
Room temperature, avoid freezing. Ship within 24 hours, Monday-Friday |
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| Test Turnaround: |
7-14 days |
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