Exome sequencing (WES)

Whole exome sequencing

Whole exome sequencing is a first-line clinical genetic test that analyzes approximately 20,000 protein-coding genes to help identify the underlying cause of suspected genetic disease.4,8

Diagnostic rate of exome sequencing vs. other technologies

Developmental delay Intellectual disability
Epilepsy
Autism spectrum disorder
Exome sequencing
36%8
Developmental delay Intellectual disability
24%9
Epilepsy
16%8
Autism spectrum disorder
Multigene panels
20-30%10-13
Developmental delay Intellectual disability
19%9
Epilepsy
3-10%14
Autism spectrum disorder
Chromosomal microarray
15-20%15
Developmental delay Intellectual disability
9%9
Epilepsy
3%16
Autism spectrum disorder
FMR1
0.45%15
Developmental delay Intellectual disability
N / A
Epilepsy
1%16
Autism spectrum disorder

Comprehensive clarity. One test.

Exome’s targeted approach increases the likelihood of identifying actionable findings in patients with a clear or suspected genetic phenotype.

Sequence variants


SNVs, indels, splice-site variants, and small intronic variants near exons


Copy-number variants


Exon-level deletions and duplications detected through exome-based CNV analysis


Mitochondrial variants (with ExomeDx + mito)


mtDNA SNVs and deletions


Inheritance insights


Trio or duo testing can improve interpretation confidence and reduce uncertainty


A complete suite of exome sequencing solutions

We offer multiple exome options that adapt to urgency and clinical need.

ExomeDx™

Our standard exome sequencing option for patients with suspected genetic conditions, developmental delay, congenital anomalies, epilepsy, or multisystem involvement.

Turnaround time: as soon as 2 weeks*


Available for
proband, duo, or trio

ExomeDx™ + mito

Exome sequencing plus mitochondrial genome sequencing and deletion testing for suspected mitochondrial disease.

Turnaround time: as soon as 2 weeks*


Available for
proband, duo, or trio

ExomeDx™ Rapid

A rapid exome sequencing option for critically ill patients who need fast answers.

Turnaround time: provisional results within 7 days, full written report within 2 weeks*


Available for
proband, duo, or trio

GeneDx Infinity™: The largest rare disease dataset

Infinity is powered by data from over 2.5 million tests – informed by nearly 1 million exomes and genomes and more than 7 million phenotypic datapoints – to help you uncover answers faster and fuel the discovery of life-changing treatments.

Learn more about Infinity
1

Choose a test

Use the test catalog to search by condition, gene, or indication. Each listing includes recommended use cases, methodology, and sample requirements—helping you select the right test for each patient.

2

Submit a sample

Request a sample collection kit, collect the sample, and ship it to our lab using the provided materials. Detailed instructions are included with every kit.

3

Receive results

Results are delivered securely through our online ordering portal, typically within 2–4 weeks.3 Each report includes clear findings, interpretation, and clinical guidance to support next steps in care.

Helpful resources

Billing and insurance

Learn more about how billing works at GeneDx and the variety of support tools we offer.

Learn more

Support

Our team of clinical and genetic experts are here throughout the process—from education and guidance to results interpretation and next steps.

Contact us

Ready to bring genetic testing into your practice?

We’re here to support every step.