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GTR Home > Tests > High-Resolution Rapid Microarray (CGH and SNP)

How to order

Test Order CodeHelp: 110

How To Order

Laboratory's Test Page



How To Order


For specimen requirements and handling instructions please visit: https://www.allelediagnostics.com/ordering/sample-requirements/. Allele Diagnostics accepts samples Monday-Saturday excluding some holidays. Contact Allele Diagnostics regarding holiday schedules. Please include a complete copy of the appropriate Allele Diagnostics Requisition form: https://www.allelediagnostics.com/ordering/requisition/.
Order URL Help: https://www.allelediagnostics.com/ordering/order-test/

Informed Consent Required Help: Based on applicable state law

Specimen Source

  • Amniocytes
  • Amniotic fluid
  • Cell culture
  • Chorionic villi
  • Cord blood
  • Cystic hygroma fluid
  • Fetal blood
  • Fresh tissue
  • Frozen tissue
  • Isolated DNA
  • Product of conception (POC)
  • Skin

Specimen requirements: http://www.allelediagnostics.com/orders/sample-requirements/

Test Codes

CPT© Code(s):

Other test codes on lab website

Test Orderable By

  • Genetic Counselor
  • Licensed Physician
  • Nurse Practitioner
  • Physician Assistant

Testing Strategy


Microarray analysis reported within 2-4 business days if specimen is adequate. If not adequate, client will be contacted and plan established. After identification of a copy number gain or loss, FISH confirmation/visualization is attempted for majority of findings if specimen is adequate. If parental specimens are submitted with prenatal specimen, they are stabilized and available for follow-up testing after FISH is completed on prenatal sample.

Test services

  • Custom Balanced Chromosome Rearrangement Studies, comments
  • Custom Deletion/Duplication Testing, comments
  • Maternal cell contamination study (MCC), Order code: 7500, comments
  • Cell culturing, comments

Ordering Requirements

Genetic Counseling Required Pre-test Help
Genetic Counseling Required Post-test Help

Contact Policy


  • Laboratory can only accept contact from health care providers. Patients/families are encouraged to discuss genetic testing options with their health care provider.

Laboratory Contact For This Test

  • Annie Morton, MS, CGC, Certified Genetic counselor, CGC, Genetic Counselor
  • Phone Number: 844-255-3532
  • Email: info@allelediagnostics.com
  • Fax Number: 509-232-5779

CPT only. Copyright 2012 American Medical Association. All rights reserved.

  • Click here for the notice regarding AMA CPT codes.

Practice guidelines

  • ACMG, 2021
    Chromosomal microarray analysis, including constitutional and neoplastic disease applications, 2021 revision: a technical standard of the American College of Medical Genetics and Genomics (ACMG)
  • NSGC, 2021
    National Society of Genetic Counselors Position Statement: Prenatal Cell-Free DNA Screening
  • ACMG, 2016
    Noninvasive prenatal screening for fetal aneuploidy, 2016 update: a position statement of the American College of Medical Genetics and Genomics
  • ESHG/ASHG, 2015
    Non-invasive prenatal testing for aneuploidy and beyond: challenges of responsible innovation in prenatal screening.
  • NSGC, 2013
    Noninvasive prenatal testing/noninvasive prenatal diagnosis: the position of the National Society of Genetic Counselors. (Replaced by NSCG, 2021 Statement)
  • ACMG, 2013
    ACMG statement on noninvasive prenatal screening for fetal aneuploidy. (See 2016 Update)
  • ICFMM, 2013
    Position Statement from the Italian College of Fetal Maternal Medicine: Non-invasive prenatal testing (NIPT) by maternal plasma DNA sequencing.
  • NSGC, 2013
    NSGC practice guideline: prenatal screening and diagnostic testing options for chromosome aneuploidy.

Consumer resources

IMPORTANT NOTE: NIH does not independently verify information submitted to the GTR; it relies on submitters to provide information that is accurate and not misleading. NIH makes no endorsements of tests or laboratories listed in the GTR. GTR is not a substitute for medical advice. Patients and consumers with specific questions about a genetic test should contact a health care provider or a genetics professional.