What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveObservation

LOINC Code 33142-1: Fetal weight estimated by method of Shinozuka formula 2 1996 (US)

Name: LOINC Code 33142-1: Fetal weight estimated by method of Shinozuka formula 2 1996 (US)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:20.067Z

33142-1 is a LOINC code used to identify Fetal weight estimated by method of Shinozuka formula 2 1996 (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 from EFW2.Shinozuka 1996

What it does not mean

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

Key facts

Fetal weight estimated by method of Shinozuka formula 2 1996 (US)
Body weight
96; Bdy weight; bod; Bodies; Echography; EFW; Est; Estimated Fetal Weight; estimation; Fetal; from Shinozuka96 2; Gyn; Gynecology; OB; ObGyn; OBSTERICAL; OBSTERICAL.ULTRASOUND; Obstetrical; Obstetrics; Point in time; predicted; QNT; Quan; Quant; Quantitative; Random; Sonogram; Sonograph; Sonography; ULS; Ultrasound; US+est; 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 weight estimated by method of Shinozuka formula 2 1996 (US)Fet Weight from Shinozuka96 2Body weightOB.USMassPt^Fetus

Frequently asked questions

Code details

Code33142-1

SystemLOINC

Display nameFetal weight estimated by method of Shinozuka formula 2 1996 (US)

DescriptionBody weight

Short nameFet Weight from Shinozuka96 2

ComponentBody weight

PropertyMass

TimingPt

System (specimen)^Fetus

ScaleQn

MethodUS.estimated from EFW2.Shinozuka 1996

ClassOB.US

Example unitskg

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.09

Last changed2.70

Part names

Body weightMassPt^FetusQnUS.estimated from EFW2.Shinozuka 1996Point in time (spot)Ultrasound.estimated from EFW2.Shinozuka 1996

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.