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 104051-8: Ultrasound for pregnancy in second trimester Mother

Name: LOINC Code 104051-8: Ultrasound for pregnancy in second trimester Mother
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:18.502Z

104051-8 is a LOINC code used to identify Ultrasound for pregnancy in second trimester Mother 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 Ultrasound for pregnancy in second trimester. It is commonly used with the system or sample type ^Mother.

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 Ultrasound for pregnancy in second trimester. It is commonly used with the system or sample type ^Mother.

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

What it does not mean

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

Key facts

Ultrasound for pregnancy in second trimester Mother
Ultrasound for pregnancy in second trimester
This term reports that an ultrasound was performed for a birth registry.
2nd; Finding; Findings; Gestation; Gestations; Gravida; Mat; Maternal; Matnl; Nominal; OBGYN; Point in time; Pregnancies; Random; US 2nd trimester

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

Ultrasound for pregnancy in second trimester MotherUS 2nd trimester MotherUltrasound for pregnancy in second trimesterOBGYNFindPt^Mother

Frequently asked questions

Code details

Code104051-8

SystemLOINC

Display nameUltrasound for pregnancy in second trimester Mother

DescriptionUltrasound for pregnancy in second trimester

Short nameUS 2nd trimester Mother

ComponentUltrasound for pregnancy in second trimester

PropertyFind

TimingPt

System (specimen)^Mother

ScaleNom

ClassOBGYN

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.77

Last changed2.78

Part names

Ultrasound for pregnancy in second trimesterFindPt^MotherNomFindingPoint in time (spot)

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.