LOINCActiveObservation

LOINC Code 49035-9: Fetal Nuchal fold [Multiple of the median] Thickness US

49035-9 is a LOINC code used to identify Fetal Nuchal fold [Multiple of the median] Thickness US in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Thickness. It is commonly used with the system or sample type Nuchal fold^Fetus.

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Thickness. It is commonly used with the system or sample type Nuchal fold^Fetus.

When is it used?

  • Used in lab systems, EHRs, and clinical data exchange.
  • May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
  • Status: ACTIVE
  • Order vs observation: Observation
  • Method: US.measured

What it does not mean

  • The code identifies the observation or test, not the actual result.

Key facts

  • Fetal Nuchal fold [Multiple of the median] Thickness US
  • Thickness
  • Echography; Fetal; Gyn; Gynecology; MoM; Multiple of the median; OB; ObGyn; OBSTERICAL; OBSTERICAL.ULTRASOUND; Obstetrical; Obstetrics; Point in time; QNT; Quan; Quant; Quantitative; Random; Sonogram; Sonograph; Sonography; Thick; ULS; Ultrasound; US+Meas

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

Fetal Nuchal fold [Multiple of the median] Thickness USFet Nuchal fold MoM Thickness US.measThicknessOB.USMoMPtNuchal fold^fetus

Frequently asked questions

Code details

Code49035-9
SystemLOINC
Display nameFetal Nuchal fold [Multiple of the median] Thickness US
DescriptionThickness
Short nameFet Nuchal fold MoM Thickness US.meas
ComponentThickness
PropertyMoM
TimingPt
System (specimen)Nuchal fold^Fetus
ScaleQn
MethodUS.measured
ClassOB.US
Example unitsM.o.M
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.21
Last changed2.73

Part names

ThicknessMoMPtNuchal fold^fetusQnUS.measuredMultiple of the medianPoint in time (spot)Ultrasound.measured

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.