Athena Diagnostics - Testing that Makes a Difference
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Test Catalog

Myelin Protein Zero (MPZ) DNA Sequencing Test #134
Type of Disorder: Peripheral Neuropathy
Typical Presentation: CMT with a family history of MPZ mutations identified in a proband
Disease(s) tested for: Charcot-Marie-Tooth disease, Type 1B (CMT1B), CMT2I (CMT Type 2I), CMT2J (CMT Type 2J)
Test Details
Test Code: 134
Profiles that contain this test: Complete CMT Evaluation, Complete Dejerine-Sottas Neuropathy Evaluation, Congenital Hypomyelination Evaluation, Dominant CMT Evaluation, Partial CMT Evaluation - Demyelinating Only, Partial CMT- Axonal Only
Informed Consent Required: Yes
Medicare ABN Required: No
Special Notes: Unless a family member has been confirmed by prior molecular tests, it is recommended that this test be done as part of the Complete CMT Evaluation, #400
Technical Information
Utility: Detects sequence variations in the Myelin Protein Zero gene
Methodology: Polymerase Chain Reaction (PCR) and DNA sequencing
Reference Value: No sequence variation detected
Patents: 5,876,927, 5,723,593
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.
Stacked CPT Code(s): 83891(1), 83898(6), 83904(6), 83909(6), 83912(1)
Shipping Considerations
Please label each specimen tube with two forms of patient identification. These forms of identification must also appear on the requisition form.
Preferred Specimen Requirements
Type: Whole blood
Minimum Volume: 10ml
Collection Tube: Lavender top (EDTA)
Storage Conditions: Room temperature, avoid freezing
Shipping Conditions: Room temperature, avoid freezing. Ship same day, must arrive Monday - Friday.
Test Turnaround: 21 days
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