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Test Name

First Trimester Screen, hCG

CPT Code(s)

84163, 84702 or 81508*
*The 2016 AMA CPT codebook contains the component CPT codes and the new MAAA codeset. Please direct any questions regarding coding to the payor being billed.

Includes

PAPP-A (Pregnancy-associated Plasma Protein-A), hCG, Maternal Risk calculation which includes NT (Nuchal Translucency)

Methodology

Calculation (CALC) • Chemiluminescence (CL) • Immunoassay (IA)

Limitations

First Trimester Screen results consistent with increased risk of trisomy should be confirmed with CVS or amniotic fluid specimen. Maternal serum screening yields a low percentage of false negatives. A wide range of other chromosomal abnormalities are not identified by maternal serum screening.

Clinical Significance

To screen for Down Syndrome and Trisomy 18 at 10.0-13.9 weeks gestation.

Test FAQ

First Trimester Screen, hCG

Alternative Name(s)

Human Chorionic Gonadotropin (hCG),Nuchal Translucency (NT),Down Syndrome,Trisomy 18 Screen,MSS, 1st Trimester

To view specimen requirements and codes please Select a regional laboratory.

Not sure which laboratory serves your office? Call us 866-MYQUEST (866-697-8378)

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.

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S51559
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13572L
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First Trimester Screen, hCG
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