Test Overview
Test Methodology

All coding exons (plus 15 bp upstream and downstream of each coding exon) of the targeted gene(s) are captured, sequenced using NGS and aligned to the human reference genome. A minimum NGS coverage of 20X is achieved for all coding exons +/- 5 bp, and a minimum coverage of 10X an additional 10 bp from +/- 6 bp through +/- 15 bp. A minimum coverage of 10X is achieved for all clinically significant promoter regions. Regions which do not meet these coverage metrics are filled with targeted Sanger Sequencing. Variants in the targeted regions that are of potential clinical significance, based on the ACMG guidelines for interpretation of sequence variants (PMID: 25741868), will be reported. All reported variants of potential clinical significance not meeting the sequencing quality criteria will be confirmed by a different technology. Copy number variation is assessed by coverage depth within the targeted regions compared to a normalized reference file.

Test Usage

Sequencing and deletion/duplication reanalysis of NGS targeted genes.

Reference Range *

Interpretive report provided.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Limitations

This analysis may not identify variants in the regulatory elements or deep intronic regions of the targeted gene(s) or other regions of the genome that are not included in this test. This assay may not detect small copy number variants (1-2 exons), or balanced inversion/translocations involving the targeted gene(s). Variant classification reflects the current state of scientific understanding at the time of test completion. As new scientific data becomes available, the interpretation and classification of variants identified in this assay may change. Test interpretation may be impacted by the presence of a hematologic malignancy or an allogenic bone marrow transplant.

Test Details
Days Set Up
Monday - Friday
Analytic Time

28 days

Soft Order Code
RND
MiChart Code
REANALYSIS OF NGS DATA
Laboratory
MMGL
Section
MMGL Molecular Genetics
Specimen Requirements
Collection Instructions

Reanalysis of NGS DATA cannot be ordered unless a previous germline NGS panel was ordered in MMGL: BOPND, BOPN, CCND. Contact the laboratory for additional information.

Normal Volume
NA
Minimum Volume
NA
Additional Information

Most insurance carriers require prior authorization for genetic testing. Testing will not begin until insurance prior authorization is received by the laboratory or it is confirmed that prior authorization is not required. The ordering health care provider can obtain the prior authorization or request the laboratory to submit it. To obtain BCN prior authorization call Joint Venture Hospital Laboratories (JVHL) at 800-445-4979; for all other insurances, contact the plan directly. By ordering this test the clinician acknowledges that informed consent, https://mlabs.umich.edu/sites/default/files/2023-04/file/germline-conse…, has been obtained from the patient as required by applicable state or federal laws and the ordering clinician has authorization from the patient permitting MLabs to report the test results to the ordering clinician. Test includes medical geneticist interpretation of results billed as a separate additional charge. This test is not available without interpretation.

Billing
CPT Code
81479
Fee Code
DA140