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Genetic Labs

Houston, Texas

Genetic Laboratory
Baylor Genetics Laboratories
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Medical Genetics Test Details

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The American Medical Association (AMA) Current Procedural Terminology (CPT) codes and Healthcare Common Procedure Coding System (HCPCS) codes listed, are provided for informational purposes only. The codes reflect our interpretation of CPT/HCPCS coding requirements based upon AMA guidelines published annually. CPT/HCPCS codes are provided only as guidance to assist clients with billing. Baylor Genetics strongly recommends that clients confirm CPT/HCPCS codes with their Medicare Administrative Contractor (MAC) or other payer being billed, as requirements may differ. CPT coding is the sole responsibility of the billing party. Baylor Genetics assumes no responsibility for billing errors due to reliance on the CPT codes listed. Please direct any questions regarding CPT coding to the payer being billed.

Chromosomal Microarray Analysis - HR
Test Information:
Product of Conception(POC) tests should be requested using the Cytogenetics - Products of Conception Requisition
Test Details
Test Code: 8655
Special Notes: Chromosomal Microarray Analysis - High Resolution (CMA-HR) utilizes array-based comparative genomic hybridization (aCGH) with approximately 180,000 oligos covering the whole genome at the average resolution of 30Kb, 1,714 genes with all exons covered, 700 microRNAs, and the entire mitochondrial genome. Genomic DNA from the test sample and a control sample are differentially labeled with fluorescent dyes and hybridized to the oligos. Results are analyzed using quantitative imaging methods and analytical software to assist in identifying each targeted-DNA sequence as loss of copy number (deletion), gain of copy number (duplication) or normal copy number. This technology has been validated in our laboratory on many patients with known microdeletions/duplications and other unbalanced karyotypes detected by traditional cytogenetic methods. CMA is limited to detection of gain or loss of genomic material. It will not detect low level mosaicism, balanced translocations, inversions, or point mutations that may be responsible for the clinical phenotype.

For information regarding CMA parental studies, please review the following document titled CMA Parental Studies Policy.
Technical Information
Methodology: Microarray
Sample & Shipping Information
Test Requisition: Cytogenetics
Specimen Type: Blood
Requirements: Draw blood in both Sodium Heparin (green-top) tube(s) and an EDTA (purple-top) tube(s) and send 3-5 cc (Adults/Children) or 1-2 cc (Infant< 2 years).
Shipping Conditions: Ship at room temperature in an insulated container by overnight courier. Do not heat or freeze. Sample must arrive within 72 hrs.

Specimen Type: Buccal Swab
Requirements: Collected with ORAcollectDx(OCD-100) self-collection kit (provided by Baylor Genetics with instructions). It is highly recommended that the sample be collected by a healthcare professional.
Shipping Conditions: Ship at room temperature in an insulated container by overnight courier. Do not heat or freeze. Sample must arrive within 72 hrs.

Turn Around Time: 14 days
Billing Information
List Price: *For Insurance or Institutional Prices, please call.
CPT Codes: 81228x1

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