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Test Catalog
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Early Onset Obesity (MC4R) Evaluation |
#640 |
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| Type of Disorder: |
Obesity |
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| Typical Presentation: |
Severe obesity before age 3 or 4 |
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| Indications for Testing: |
Severe obesity with onset at or before 5 years
Family history of MC4R-related early onset obesity |
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| Test Details |
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| Test Code: |
640 |
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| Profiles that contain this test: |
Early-Onset Obesity Evaluation
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| Informed Consent Required: |
Yes |
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| Medicare ABN Required: |
Yes |
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| Special Notes: |
N/A |
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| Technical Information |
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| Utility: |
Detects mutations in the melanocortin 4 receptor gene (MC4R) |
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| Methodology: |
Polymerase Chain Reaction (PCR), DNA sequencing of entire protein coding region of gene |
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| Reference Value: |
No mutation detected |
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| Patents: |
5,703,220, 6,117,975, 5,622,860, 5,869,257 |
| 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(3), 83904(3), 83909(3), 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: |
Yellow or lavender top |
| Stability: |
Hemolysis may compromise DNA recovery after 48 hrs |
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| Storage Conditions: |
For short periods (until shipped) at 4°C |
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| Shipping Conditions: |
Overnight at room temperature (specimen arrival must be less than 24 hrs after collection); ship Monday through Thursday only |
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| Test Turnaround: |
2 - 8 weeks |
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