76813 Ob ultrasound nuchal meas 1 gest
Also known as: Nuchal translucency scan, NT scan, First trimester screening
Obstetric ultrasound examination for nuchal translucency measurement during first gestation for aneuploidy screening.
In Plain Language
Neck fold measurement in baby; Early screening for Down syndrome
Clinical Context
First trimester (11-14 weeks) measurement of fetal nuchal translucency for aneuploidy risk assessment combined with biochemical markers.
RVU Breakdown
| Work RVU | 1.15 |
| Total RVU | 1.15 |
Est. Medicare Payment
National estimate based on 2026 CMS PFS Conversion Factor ($33.40). Actual payment varies by locality (GPCI adjustment).
Billing & Documentation
Radiology codes require a written order, clinical indication, and a formal interpretation report. The professional component (modifier -26) and technical component (modifier -TC) may be billed separately.
How This Code Compares
With a work RVU of 1.15, this code ranks in the 65th percentile among Radiology codes — 1.4x the median (0.81). The highest wRVU in this category is 11.57.
Specialties
Frequently Asked Questions
What is CPT code 76813?
CPT 76813 (Ob ultrasound nuchal meas 1 gest) is a Radiology code. Obstetric ultrasound examination for nuchal translucency measurement during first gestation for aneuploidy screening.
Who uses CPT code 76813?
CPT 76813 is used by Radiology, Obstetrics, Maternal-Fetal Medicine. First trimester (11-14 weeks) measurement of fetal nuchal translucency for aneuploidy risk assessment combined with biochemical markers.
When is CPT 76813 used?
First trimester (11-14 weeks) measurement of fetal nuchal translucency for aneuploidy risk assessment combined with biochemical markers.
Track This Code in RVU Edge
Log procedures, calculate wRVUs, and benchmark against national data — all in one app.
CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.