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Chromosome Analysis,Chorionic Villus with Reflex to ClariSure®,Oligo-SNP,Prenatal
Test Code92808
CPT Codes
88235, 88267, 88280
Physician Attestation of Informed Consent
This germline genetic test requires physician attestation that patient consent has been received if ordering medical facility is located in AK, DE, FL, GA, IA, MA, MN, NV, NJ, NY, OR, SD or VT or test is performed in MA.
Includes
If Chromosome Analysis, Chorionic Villus Sample is normal, then Chromosomal Microarray, Prenatal, ClariSure® Oligo-SNP will be performed at an additional charge. (CPT code(s): 81229).
Preferred Specimen
40 mg chorionic villus sampling collected in CVS transport media
Minimum Volume
20 mg
Instructions
Do not reject.
Patient's age, gestational age, and indication(s) for testing are necessary; please submit completed cytogenetics requisition form with information. Do not split. Send all tubes to lab.
Signed informed consent is a requirement. CVS Transport media and handling instruction available upon request.
This test may be replaced by other bill codes, if the complete study cannot be performed, or if the specimen does not yield mitotically active cells for analysis: Prenatal Specimen Culture; or Cytogenetics Communication (if a communication is required).
Patient's age, gestational age, and indication(s) for testing are necessary; please submit completed cytogenetics requisition form with information. Do not split. Send all tubes to lab.
Signed informed consent is a requirement. CVS Transport media and handling instruction available upon request.
This test may be replaced by other bill codes, if the complete study cannot be performed, or if the specimen does not yield mitotically active cells for analysis: Prenatal Specimen Culture; or Cytogenetics Communication (if a communication is required).
Transport Container
CVS transport media
Transport Temperature
Room temperature
Specimen Stability
Specimen viability decreases during transit. Send specimen to testing lab for viability determination. Do not freeze. Do not reject.
Methodology
Culture • Karyotype • Microscopy
Setup Schedule
Daily
Reference Range
See Laboratory Report
Clinical Significance
Testing determines chromosomal status of the fetus. Numerical and structural chromosomal abnormalities can be diagnosed. Sex and the presence of more than one cell line (mosaicism) can also be determined. Indications include diagnosis of chromosome abnormalities in fetuses of women who are of advanced maternal age; had a previous child with a chromosome abnormality; parental carrier of a balanced translocation, inversion or marker chromosome; parental mosaicism.
Chromosomal Microarray, Prenatal, ClariSure® Oligo-SNP - This assay may be useful for:
• Further investigation on fetuses with abnormal ultrasound findings indicating congenital malformation.
• Further definition of an imbalanced cytogenetic abnormality.
• Further investigation on equivocal cytogenetic findings.
• Attempt at characterization of supernumerary marker chromosome.
• Follow-up to a documented chromosome abnormality or genomic alteration in a sibling or a parent.
• Family history of a previous child with mental retardation and/or phenotypic abnormalities.
Chromosomal Microarray, Prenatal, ClariSure® Oligo-SNP - This assay may be useful for:
• Further investigation on fetuses with abnormal ultrasound findings indicating congenital malformation.
• Further definition of an imbalanced cytogenetic abnormality.
• Further investigation on equivocal cytogenetic findings.
• Attempt at characterization of supernumerary marker chromosome.
• Follow-up to a documented chromosome abnormality or genomic alteration in a sibling or a parent.
• Family history of a previous child with mental retardation and/or phenotypic abnormalities.
Performing Laboratory
| Quest Diagnostics Nichols Institute-San Juan Capistrano, CA |
| 33608 Ortega Highway |
| San Juan Capistrano, CA 92675-2042 |
Last Updated: November 6, 2024
