Sema4|GeneDx to Provide Whole Genome Sequencing and Interpretation Services for Landmark Genomic Newborn Screening Study.  Learn more >>

GFAP Gene Sequencing


Genes

GFAP

Conditions

  • Alexander Disease

Clinical Utility

  • Confirmation of a clinical diagnosis
  • Differentiation of Alexander disease from Canavan disease
  • Prenatal diagnosis in at-risk pregnancies

Lab Method

  • Capillary Sequencing

Test Code

218

CPT Codes*

81405x1

ABN Required

No

Turnaround Time**

3 weeks

Preferred Specimen

2-5 mL Blood - Lavender Top Tube

Alternative Specimen

Buccal Swabs | Dried Blood Spots

*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.

**Reporting times are typical and begin once the sample(s) are received at the GeneDx laboratory, but could be extended in situations outside GeneDx’s reasonable control.