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.

LOINCActiveBoth

LOINC Code 80866-7: US for pregnancy in second or third trimester

Name: LOINC Code 80866-7: US for pregnancy in second or third trimester
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:03.794Z

80866-7 is a LOINC code used to identify US for pregnancy in second or third trimester 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 Multisection for pregnancy+second or third trimester. It is commonly used with the system or sample type Pelvis+^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 Multisection for pregnancy+second or third trimester. It is commonly used with the system or sample type Pelvis+^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: Both
Method: US

What it does not mean

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

Key facts

US for pregnancy in second or third trimester
Multisection for pregnancy+second or third trimester
2nd; 3rd; CorePlaybook; Document; Echography; Fetal; Finding; Findings; for preg 2nd or 3rd trim; Gestation; Gestations; Gravida; Gyn; Gynecology; Imaging; OB; ObGyn; Obstetrics; Pelvic; Pelvis+Fetus; Playbook; Point in time; Pregnancies; Radiology; Random; Sonogram; Sonograph; Sonography; ULS; Ultrasound

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

US for pregnancy in second or third trimesterUS for preg 2nd or 3rd trimMultisection for pregnancy+second or third trimesterRADFindPtPelvis+^Fetus

Frequently asked questions

Code details

Code80866-7

SystemLOINC

Display nameUS for pregnancy in second or third trimester

DescriptionMultisection for pregnancy+second or third trimester

Short nameUS for preg 2nd or 3rd trim

ComponentMultisection for pregnancy+second or third trimester

PropertyFind

TimingPt

System (specimen)Pelvis+^Fetus

ScaleDoc

MethodUS

ClassRAD

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.56

Last changed2.58

Part names

Multisection for pregnancy+second or third trimesterFindPtPelvis+^FetusDocUSPelvisFetusPregnancySecond or third trimesterfor pregnancy in second or third trimesterFindingPoint in time (spot)Pelvis and FetusUltrasound

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.