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Test Catalog
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| Type of Disorder: |
Movement Disorders |
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| Typical Presentation: |
Ataxia, poor coordination of hand, speech and eye movements, uncoordinated and unsteady gait |
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| Disease(s) tested for: |
Spinocerebellar ataxia type 6 (SCA6) |
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| Test Details |
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| Test Code: |
373 |
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| Profiles that contain this test: |
Autosomal Dominant Ataxia Evaluation, Complete Ataxia Evaluation
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| Informed Consent Required: |
Yes |
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| Medicare ABN Required: |
Yes |
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| Special Notes: |
The Complete Ataxia Evaluation, #690 is recommended unless a family member's mutation has been confirmed by prior molecular tests. |
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| Technical Information |
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| Utility: |
Detects CAG triplet repeat expansion in the SCA6 gene |
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| Methodology: |
Polymerase Chain Reaction (PCR) and Fragment Analysis by Capillary Electrophoresis |
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| Reference Value: |
Normal: < 18 CAG trinucleotide repeats |
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| Patents: |
5,853,995, 6,303,307, 7,329,487 |
| 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): |
83891(1), 83898(1), 83909(1), 83912(1) |
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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: |
Whole blood |
| Minimum Volume: |
20ml |
| Collection Tube: |
Lavender top (EDTA) |
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| Storage Conditions: |
Refrigerate, avoid freezing |
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| Shipping Conditions: |
Room temperature, avoid freezing. Ship within 24 hours, Monday - Thursday only. |
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| Test Turnaround: |
7-14 days |
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