Does Not Apply to Commercial Genetic Testing Program effective 6/1/2018
Chromosomal microarray analysis (CMA) of fetal or placental tissue has been proposed as a technique to evaluate the cause of isolated and recurrent early pregnancy loss and intrauterine fetal demise. The evaluation of recurrent and isolated miscarriages and intrauterine fetal demise may involve genetic testing of the products of conception.
Chromosomal microarray analysis has the ability to identify submicroscopic genetic abnormalities too small for conventional karyotyping to detect. Because chromosomal microarray analysis does not require dividing cells, it may be useful in the evaluation of fetal demise, in which the culturing of macerated tissue is frequently unsuccessful. In addition, chromosomal microarray analysis is a standardized procedure that involves the use of computerized analysis, whereas karyotyping involves microscopic examination of stained chromosomes and may be more subjective and prone to human error.
Chromosomal microarray analysis of products of conception (fetal tissue or placental tissue derived from the fetal genotype) for the evaluation of pregnancy loss is considered medically necessary if the medical appropriateness criteria are met. (See Medical Appropriateness below.)
Chromosomal microarray analysis of fetal tissue following miscarriage or intrauterine fetal demise in all other situations is considered investigational.
Chromosomal microarray analysis is considered medically appropriate if ALL of the following are met:
Pregnancy loss with ANY ONE of the following:
Pregnancy loss occurred at 20 weeks gestation or earlier when there is a maternal history of two or more failed pregnancies
Pregnancy loss occurred after 20 weeks gestation
Testing is accompanied by pre- and post-test genetic counseling
Any specific products referenced in this policy are just examples and are intended for illustrative purposes only. It is not intended to be a recommendation of one product over another, and is not intended to represent a complete listing of all products available. These examples are contained in the parenthetical e.g. statement.
We develop Medical Policies to provide guidance to Members and Providers. This Medical Policy relates only to the services or supplies described in it. The existence of a Medical Policy is not an authorization, certification, explanation of benefits or a contract for the service (or supply) that is referenced in the Medical Policy. For a determination of the benefits that a Member is entitled to receive under his or her health plan, the Member's health plan must be reviewed. If there is a conflict between the Medical Policy and a health plan, the express terms of the health plan will govern.
American College of Obstetrics and Gynecology. (2016). ACOG Committee on Genetics, Committee Opinion No. 682: Microarrays and next-generation sequencing technology: The use of advanced genetic diagnostic tools in obstetrics and gynecology. Retrieved December 6, 2016 from www.acog.org.
American Society for Reproductive Medicine. (2012). Evaluation and treatment of recurrent pregnancy loss: a committee opinion. Retrieved October 13, 2015 fromhttps://www.asrm.org.
BlueCross BlueShield Association. Evidence Positioning System. (8:2018). Chromosomal microarray testing for the evaluation of pregnancy loss. (2.04.122). Retrieved October 16, 2018 from https://www.evidencepositioningsystem.com/ (32 articles and/or guidelines reviewed)
Dhillon, R., Hillman, S., Morris, R., McMullan, D., Williams, D., Coomarasamy, A., et al. (2013). Additional information from chromosomal microarray analysis (CMA) over conventional karyotyping when diagnosing chromosomal abnormalities in miscarriage: a systematic review and meta-analysis. British Journal of Obstetrics and Gynaecology, 121 (1), 11-21. (Level 1 evidence)
Levy, B., Sigurjonsson, S., Pettersen, B., Maisenbacher, M.K., Hall, M.P., Demko, Z., et al. (2014). Genomic imbalance in products of conception: single-nucleotide polymorphism chromosomal microarray analysis. Obstetrics and Gynecology, 124 (2 Pt 1), 202-209. Abstract retrieved February 9, 2016 from PubMed database.
Pauta, M., Grande, M., Rodriguez-Revenga, L., Kolomietez, E., & Borrell, A. (2018). Added value of chromosomal microarray analysis over karyotyping in early pregnancy loss: systematic review and meta-analysis. Ultrasound in Obstetrics and Gynecology, 51 (4), 453-462. Abstract retrieved October 16, 2018 from PubMed database.
Rosenfeld, J. A., Tucker, M. E., Escobar, L. F., Neill, N. J., Torchia, B. S., McDaniel, L. D., et al. (2015). Diagnostic utility of microarray testing in pregnancy loss. Ultrasound in Obstetrics & Gynecology, 46 (4), 478-486. Abstract retrieved December 6, 2016 from PubMed database.
Sahoo, T., Dzidic, N., Strecker, M., Commander, S., Travis, M., Doherty, C., et al. (2016). Comprehensive genetic analysis of pregnancy loss by chromosomal microarrays: outcomes, benefits, and challenges. Genetics in Medicine, 2016, June 23. Epub ahead of print. Abstract retrieved December 6, 2016 from PubMed database.
ORIGINAL EFFECTIVE DATE: 2/8/2015
MOST RECENT REVIEW DATE: 12/13/2018
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