LOINCActiveObservation

LOINC Code 11727-5: Fetal Body weight estimated by US

11727-5 is a LOINC code used to identify Fetal Body weight estimated by 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 Body weight. It is commonly used with the system or sample type ^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 Body weight. It is commonly used with the system or sample type ^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+Estimated

What it does not mean

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

Key facts

  • Fetal Body weight estimated by US
  • Body weight
  • This term pertains only to the FETUS. Method Reference can be supplied by DICOM Supplement 23-Structured Reporting, Relationship Module (C.6.29).
  • Bdy weight; bod; Bodies; Echography; EFW; Est; Estimated fetal weight; estimation; Fetal; Gyn; Gynecology; OB; ObGyn; OBSTERICAL; OBSTERICAL.ULTRASOUND; Obstetrical; Obstetrics; Point in time; predicted; QNT; Quan; Quant; Quantitative; Random; Sonogram; Sonograph; Sonography; ULS; Ultrasound; Wt

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 Body weight estimated by USFet Weight US+estBody weightOB.USMassPt^Fetus

Frequently asked questions

Code details

Code11727-5
SystemLOINC
Display nameFetal Body weight estimated by US
DescriptionBody weight
Short nameFet Weight US+est
ComponentBody weight
PropertyMass
TimingPt
System (specimen)^Fetus
ScaleQn
MethodUS+Estimated
ClassOB.US
Example unitsg
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0j-a
Last changed2.73

Part names

Body weightMassPt^FetusQnUS+EstimatedPoint in time (spot)Ultrasound+Estimated

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.