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Test Catalog
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GDAP1 DNA Sequencing Test |
#221 |
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| Type of Disorder: |
Peripheral Neuropathy |
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| Typical Presentation: |
CMT with a family history of GDAP1 mutations identified in a proband |
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| Disease(s) tested for: |
Charcot-Marie-Tooth Disease, Type 4A (CMT4A), CMT2K (CMT Type 2K) |
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| Test Details |
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| Test Code: |
221 |
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| Profiles that contain this test: |
Complete CMT Evaluation, Partial CMT Evaluation - Demyelinating Only, Partial CMT Evaluation - Recessive Only, Partial CMT- Axonal Only
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| Informed Consent Required: |
Yes |
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| Medicare ABN Required: |
No |
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| Special Notes: |
Use of the Complete CMT Evaluation, #390 is recommended for all new cases. When the gene is identified, a single gene test may be used for family member testing. |
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| Technical Information |
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| Utility: |
Detects sequence variations in the GDAP1 gene |
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| Methodology: |
Polymerase Chain Reaction (PCR) and DNA sequencing |
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| Reference Value: |
No sequence variation detected |
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| Patents: |
N/A |
| 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(6), 83904(6), 83909(6), 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: |
10ml |
| Collection Tube: |
Lavender (EDTA) |
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| Storage Conditions: |
Room temperature, avoid freezing |
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| Shipping Conditions: |
Room temperature, ship same day |
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| Test Turnaround: |
14-21 days |
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